JP7075036B2 - Telephone systems, telephone controls and terminals - Google Patents

Description

The present invention relates to a telephone system configured by connecting a plurality of telephone terminals to a telephone control device such as a SIP (Session Initiation Protocol) server, a telephone control device used in the telephone system, and a telephone terminal.

In offices such as companies, a business phone system (button telephone) that accommodates multiple telephone terminals in a telephone control device to which one or more external lines are connected and enables external and internal calls to be made through these telephone terminals. System) has been constructed and used. In the business phone system, so-called individual incoming call functions such as a dial-in function and a direct-in dial function have been conventionally realized.

For the dial-in function, a contract is made in advance with the service provided by the telephone company, and an additional telephone number different from the original representative telephone number is assigned to the subscriber contract line used by the called party's telephone control device. .. Then, when an additional telephone number is notified from the telephone network when an outside line arrives, the telephone control device is a function of individually calling the extension telephone terminal corresponding to the additional telephone number. In addition, the direct-in-dial function automatically responds to incoming calls to external telephone numbers in the telephone control device, receives the extension number (extension telephone number) transmitted from the calling terminal, and the extension number. It is intended to make individual incoming calls to the extension telephone terminal corresponding to.

With these functions, it is possible to make a direct call to the target party without having to call the representative telephone number and have the target party take over. Then, when these individual incoming call functions are available, the incoming call forwarding function is further enabled, and when there is no response for a certain period of time at the time of incoming call forwarding, the forwarding setting device is connected to the answering machine to activate the answering machine recording function. The invention is disclosed in Patent Document 1. Further, Patent Document 2 discloses a technique for switching to a group incoming call when there is no response for a certain period of time when receiving an individual incoming call.

Japanese Unexamined Patent Publication No. 10-51553 Japanese Unexamined Patent Publication No. 6-244956

However, the inventions described in Patent Document 1 and Patent Document 2 described above can be made possible by setting in advance in the telephone control device how to respond to an individual incoming call when the person is absent. Is. Therefore, depending on the situation at that time, such as the other party of the caller or your own convenience, it may be better for another person in charge to respond to the incoming call than you, but in such cases, it is individual. You may have to answer the incoming call once, and you may not be able to respond quickly.

In view of the above, the present invention allows an individual incoming call to be answered by a target proxy answering party without presetting or answering the incoming call and without performing complicated operations. The purpose is to do so.

In order to solve the above problems, the telephone system of the invention according to claim 1 is
A telephone system in which multiple telephone terminals are connected to a telephone control device.
The caller's telephone terminal, which is one of the plurality of telephone terminals and is notified of an incoming call addressed to its own device, is
Incoming call notification means to notify the user when an incoming call to your own device occurs,
Identification information of another telephone terminal that is another one of the plurality of telephone terminals and should be a new answer destination on behalf of the own unit when the incoming call is notified through the incoming call notification means. And a reception means that accepts the input of proxy response information consisting of the proxy response special number without answering the incoming call.
When the proxy response information is received through the reception means, a forming means for forming a proxy response request including the proxy response information and a forming means.
A transmission means for transmitting the proxy response request formed by the forming means to the telephone control device is provided.
The telephone control device is
When the proxy response request is received, the providing means for providing the proxy response request to the other telephone terminal specified by the identification information of the proxy response information included in the proxy response request .
A call line that enables a call by connecting a call line between the caller's telephone terminal and the other telephone terminal when a start request including the proxy answer special number is received from the other telephone terminal. Connection method and
An incoming call canceling means for canceling an outside line incoming call generated in the called party's telephone terminal by communicating with the called party's telephone terminal after connecting the call line through the call line connecting means.
Equipped with
The other telephone terminals that should be the new answer destination are
When the proxy response request addressed to the own machine is received, the notification means for notifying the user that the proxy response request has been provided to the own machine and the notification means.
When the proxy response request is notified through the notification means, the proxy response operation receiving means for receiving the response operation from the user and the proxy response operation receiving means .
When the response operation is received through the proxy response operation receiving means, the start request transmitting means including the proxy response special number is formed and transmitted to the telephone control device.
It is characterized by having.

As a result, the individual incoming call can be answered through another telephone terminal that should be a new answer destination on behalf of the telephone terminal without answering the individual incoming call.

According to the present invention, for an individual incoming call, a proxy response is requested from a target proxy response destination without performing preset settings or answering the incoming call, and without performing complicated operations. Can be made to.

It is a figure for demonstrating the outline of the telephone system (business phone system) of embodiment. It is a block diagram for demonstrating the configuration example of a telephone terminal. It is an external view of a telephone terminal. It is a figure for demonstrating the example of the surrogate response information. It is a block diagram for demonstrating the configuration example of a SIP server. It is a figure for demonstrating the example of the storage data of an address management DB. It is a sequence diagram for demonstrating the first example in the case of making a surrogate response. It is a sequence diagram for demonstrating the 2nd example in the case of making a surrogate response. It is a sequence diagram following FIG.

Hereinafter, an embodiment of the telephone terminal system, the telephone control device, and the telephone terminal according to the present invention will be described with reference to the drawings. In the embodiment described below, for example, a case where the telephone terminal system, the telephone control device, and the telephone terminal of the present invention are applied to a business phone system (button telephone system) formed in a business establishment will be described as an example. ..

[Overview of the telephone system of the embodiment]
FIG. 1 is a diagram for explaining an outline of the telephone system of this embodiment. As shown in FIG. 1, the telephone system of this embodiment has a plurality of telephone terminals 3 (1), 3 (2), through a LAN (Local Area Network) 2 for a SIP server 1 which is a telephone control device. 3 (3), 3 (4), 3 (5) ... Are connected and configured. That is, the portion including the SIP server 1, the LAN 2, the telephone terminal 3 (1), 3 (2), 3 (3), 3 (4), 3 (5) ... constitutes the telephone system of this embodiment. This is the part to do.

As shown in FIG. 1, the SIP server 1 is connected to the IP network 6 and the telephone network 7 constituting the wide area network 8 and resolves addresses between terminals connected to a communication path (telephone line). That is, the SIP server 1 has a function as a small exchange for connecting an external line to an internal line or between internal lines. In addition, the SIP server 1 also has a function of using SIP (Session Initiation Protocol) to perform call control such as associating a telephone number with an IP (Internet Protocol) address and calling and connecting the other party. ..

As described above, the SIP server 1 also has a registrar server function and a proxy server function. Then, by using these functions, the SIP server 1 can be used between a telephone terminal connected to LAN 2 or between a telephone terminal connected to LAN 2 and a telephone terminal connected to IP network 6 or telephone network 7. In the meantime, make it possible to connect a communication path.

The IP network 6 means a network that communicates using IP (Internet Protocol), and is specifically the Internet. Further, the telephone network 7 includes an analog public switched telephone network (PSTN (Public Switched Telephone Network)), a digital network (ISDN (Integrated Services Digital Network)), a mobile telephone network, and the like.

Each of the telephone terminals 3 (1), 3 (2), 3 (3), 3 (4), 3 (5), ... Is used by the user to make a call. As described above, each of the telephone terminals 3 (1), 3 (2), 3 (3), 3 (4), 3 (5), ... It is used when making a call with another telephone terminal or with an external telephone terminal connected to the IP network 6 or the telephone network 7.

Then, as shown in FIG. 1, a telephone terminal 9 for an outside line is connected to the wide area network 8 when viewed from the SIP server 1. A large number of telephone terminals are connected to the wide area network 8, but for the sake of simplicity, the telephone terminal 9 is shown here as one of the large number of telephone terminals connected to the wide area network 8. .. The wide area network 8 may be connected to one telephone terminal such as a home telephone terminal, or a plurality of telephone terminals may be connected to the wide area network 8 via a telephone control device such as a SIP server. In some cases.

In the telephone system of this embodiment, each of the telephone terminals 3 (1), 3 (2), 3 (3), 3 (4), 3 (5), ... By cooperating with the SIP server 1. It can support the individual incoming call function. The individual incoming call function includes a dial-in function using an additional telephone number and a direct-in dial function using an extension number, and the telephone system of this embodiment can use any of the functions. be. In the following, for the sake of simplicity, a case where an individual incoming call is generated by the direct-in-dial function, which does not require an additional telephone number from the telephone company, will be described as an example.

Then, it is assumed that a call is made from the outside line telephone terminal 9 to the telephone terminal 3 (1) of the telephone system of this embodiment by using the direct-in dial function. As a result, the telephone terminal 3 (1) receives an individual incoming call based on the outgoing call from the telephone terminal. In this case, it is determined that the user of the telephone terminal 3 (1) should have the user of the telephone terminal 3 (5) answer the individual incoming call currently occurring in his / her own device. do.

Specifically, a person who responds to a call from the other party (source) displayed on the display of the telephone terminal 3 (1) by the user of the telephone terminal 3 (5). May be judged to be good. In addition, since the user of the telephone terminal 3 (1) is dealing with an urgent job, for example, he / she cannot afford to answer the individual incoming call generated in his / her own machine, and corresponds to the user of the telephone terminal 3 (5). It may be judged that you want to do it.

In such a case, the user of the telephone terminal 3 (1) can request the user of the telephone terminal 3 (5) to make a proxy response to the individual incoming call. In this case, the user of the telephone terminal 3 (1) does not have to make advance settings for call forwarding to the SIP server 1 and does not answer the individual incoming call. ing. Then, when the user of the telephone terminal 3 (5) responds to the request, the SIP server 1 connects a telephone line between the calling terminal 9 and the proxy answering destination telephone terminal 3 (5). And make it possible to make a call.

Hereinafter, a configuration example of the telephone terminals 3 (1), 3 (2), 3 (3), ... And the SIP server 1 constituting the telephone system of this embodiment will be described. In the following, first, a configuration example of the telephone terminal 3 (1), 3 (2), 3 (3), ... Will be described, and then a configuration example of the SIP server 1 will be described. Further, in the following, the telephone terminal on which the operation for making a call is performed is described as "source", the other party who made a call from the source is described as "destination", and this destination is the proxy response. When it becomes a request source, it is described as "call source" to distinguish it. Then, the telephone terminal for which a proxy response is requested is described as "surrogate response destination".

[Structure example of telephone terminal 3 (1), 3 (2), 3 (3), ...]
In this embodiment, each of the telephone terminals 3 (1), 3 (2), 3 (3), ... Connected to the SIP server 1 has the same basic configuration. Therefore, a configuration example of the telephone terminal 3 (1) will be described on behalf of the telephone terminals 3 (1), 3 (2), 3 (3), .... The external line telephone terminal 9 also has the same basic configuration as the telephone terminal 3 (1) described below.

FIG. 2 is a block diagram for explaining a configuration example of the telephone terminal 3 (1) of this embodiment, and FIG. 3 is an external view of the telephone terminal 3 (1). In FIG. 2, although not shown, the control unit 310 is a microprocessor formed by connecting a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), a non-volatile memory, and the like through a CPU bus. Is. The control unit 310 controls each unit of the telephone terminal 3 (1).

The connection terminal 301 constitutes a connection end to LAN2. The connection I / F 302 realizes a connection with the SIP server 1 through LAN2. That is, the connection I / F 302 performs a process of converting a signal transmitted to the own machine into a signal in a format that can be processed by the own machine and taking it into the own machine. Further, the connection I / F 302 performs a process of converting a signal transmitted from its own machine into a signal for transmission and transmitting the signal. The telephone terminal 3 (1) of this embodiment is wiredly connected to the SIP server 1 through the connection terminal 301 and the connection I / F 302, and various information is connected to the SIP server 1 through the connection terminal 301 and the connection I / F 302. Send and receive. The packet processing unit 303 performs decomposition processing / generation processing of various data such as control data and voice data that are packetized and transmitted / received.

The handset 304 includes a speaker (handset) and a microphone (transmitter). The codec 305 receives the supply of packet-decomposed voice data in the packet processing unit 303, compresses and decompresses it, converts it into an analog voice signal, and supplies it to the speaker of the handset 304 in the off-hook state. As a result, the voice from the other party is emitted from the speaker of the handset 304. Further, the codec 305 converts the analog audio signal picked up by the microphone of the handset 304 in the off-hook state into a digital signal, compresses the data, and supplies it to the packet processing unit 303. The packet processing unit 303 packetizes the voice data from the codec 305 and transmits this to the other party through the connection I / F 302 and the connection terminal 301.

As shown in FIG. 3, the handset 304 is placed in a fixed position on the left side of the housing of the telephone terminal 3 (1). The hook switch unit 306 is in the on-hook state when the handset 304 is placed in the fixed position of the housing of the telephone terminal 3 (1), and is in the off-hook state when it is picked up from the fixed position of the housing of the telephone terminal 3 (1). .. The hook switch unit 306 notifies the control unit 310 of the on-hook / off-hook state. As a result, the control unit 310 can always and appropriately grasp the hook state of the own machine. The ringer 307 emits a ringtone when receiving an incoming call under the control of the control unit 310.

The display controller 311 and the display 312 perform a process of displaying various information on the display screen of the display 312 under the control of the control unit 310. As shown in FIG. 3, the display 312 is provided on the upper right end side of the upper surface of the housing of the telephone terminal 3 (1), and is provided with a telephone number of the other party, a telephone number or name of the caller, a guidance message, and the like. Various information such as warning messages can be displayed.

The operation input unit 313 and the operation input interface (hereinafter referred to as operation input I / F) 314 receive the operation input from the user and provide the received information to the control unit 310. As shown in FIG. 3, the operation input unit 313 is provided with flexible keys FK1 to FK8, a numeric keypad, and some function keys such as call, answer, and hold.

The proxy response processing unit 321 performs a proxy response through another target telephone terminal when receiving an operation for making a proxy response through the operation input unit 313 when an individual incoming call occurs in the own machine. To do so. The hold processing unit 322 realizes a function of temporarily putting a call on the own machine into a hold state. The transfer processing unit 323 realizes a function of making another telephone terminal receive a call received by the own unit.

When making a call in the telephone terminal 3 (1) having such a configuration, first, the handset 304 is picked up from the telephone terminal 3 (1) to put it in an off-hook state. Then, by inputting the telephone number of the other party through the numeric keypad of the operation input unit 313, the control unit 310 forms an outgoing call notification (outgoing message) including the telephone number of the other party. This outgoing call notification is transmitted through the connection I / F 302 and the connection terminal 301, and the other party can be called. As a result, if the other party answers, the call line is connected and a call can be made.

Further, in the telephone terminal 3 (1), when answering a telephone call to the own unit, the control unit 310 functions by taking the handset 304 from the telephone terminal 3 (1) and putting it in an off-hook state. Then, connect the call line to the other party of the call. This makes it possible to make a call with the other party.

Further, there is a case where an individual incoming call is generated in the telephone terminal 3 (1) and the user is present, but as described above, the user of another telephone terminal is requested to answer. In such a case, the user of the telephone terminal 3 (1) inputs the proxy response information through the operation input unit 313, so that the proxy response processing unit 321 functions and occurs in the telephone terminal 3 (1). It is possible to have a user of another telephone terminal answer the individual incoming call on behalf of the user.

FIG. 4 is a diagram for explaining an example of proxy response information. As shown in FIG. 4, the proxy response information includes the proxy response destination identification information and the proxy response special number. The proxy response destination identification information is information that can uniquely identify another telephone terminal requesting a proxy response, and is information managed by the SIP server 1. Specifically, it is an extension number, an IP address, a MAC (Media Access Control) address, an additional telephone number, etc. of the other telephone terminal of the proxy answering destination. In this embodiment, it is assumed that the extension number of another telephone terminal is used as the proxy response destination identification information as shown in FIG.

The proxy response special number is information indicating that the proxy response has been instructed (requested), and is, for example, as shown in FIG. 4, a normal telephone number or extension number such as "* 01". It consists of different, specific symbols and numbers. The proxy response special number "* 01" shown in FIG. 4 is just an example, and is a character string (symbol and number) that has not been used meaningfully, such as "* 99" and "# 01". It may be a character string).

Further, as the proxy response special number, the flexible key provided in the telephone terminal 3 (1) described with reference to FIG. 3 may be used. For example, a proxy response special number may be assigned to the flexible key FK8, and when the flexible key FK8 is pressed following the extension number, the proxy response information "extension number + flexible key FK8" may be formed. Further, when the flexible key FK8 is pressed following the extension number, for example, the control unit 310 may be configured to function to form proxy response information in which "* 01" is added to the extension number.

The proxy response processing unit 321 cooperates with the SIP server 1 to realize the proxy response function, including transmitting the proxy response information input through the operation input unit 313 to the SIP server 1 as described above. In this case, the SIP server 1 realizes the proxy response function by controlling the telephone terminal of the called party and the telephone terminal of the proxy answering destination in accordance with SIP (Session Initiation Protocol).

[Configuration example of SIP server 1]
FIG. 5 is a block diagram for explaining a configuration example of the SIP server 1. As shown in FIG. 5, the SIP server 1 includes a connection terminal 101 to an IP network, an IP network interface (hereinafter, abbreviated as IP network I / F) 102, and a packet decomposition / generation unit 103. There is. Further, the SIP server 1 includes a telephone network interface (hereinafter, abbreviated as telephone network I / F) 104, a connection terminal 105 to the telephone network, and an address management database (hereinafter, abbreviated as address management DB) 106. And have. Further, the SIP server 1 includes a LAN interface (hereinafter, abbreviated as LANI / F) 107, a LAN connection terminal 108, and a control unit 110.

The control unit 110 controls each unit of the SIP server 1 of this embodiment, and is a microprocessor in which a CPU 111, a ROM 112, and a RAM 113 are connected to each other through a system bus 114, as shown in FIG. Although not shown, the control unit 110 is provided with a so-called non-volatile memory, and data that should be retained even when the power is turned off, for example, various setting parameters and a new program provided for improving the function. It is also possible to retain the memory of.

The connection terminal 101 constitutes a connection end portion to the IP network. The IP network I / F 102 receives a packet supplied through the IP network, converts it into a packet in a format that can be processed by its own machine, and supplies it to the control unit 110. Further, the IP network I / F 102 converts the packet to be transmitted supplied through the control unit 110 into a packet in a transmission format, and sends the packet to the IP network.

The connection terminal 105 constitutes a connection end to the telephone network. The telephone network I / F 104 receives data supplied through the telephone network, converts the data into data in a format that can be processed by the own machine, and supplies the data to the control unit 110. Further, the telephone network I / F 104 converts the data to be transmitted supplied through the control unit 110 into data in a transmission format, and transmits this to the telephone network.

The connection terminal 108 constitutes a connection end to LAN2. The LANI / F107 receives a packet supplied through LAN2, converts it into a packet in a format that can be processed by its own machine, and supplies it to the control unit 110. Further, the LANI / F107 converts the packet to be transmitted supplied through the control unit 110 into a packet in a transmission format, and sends this to LAN2. Therefore, various information is transmitted / received between the SIP server 1 and the subordinate telephone terminals 3 (1), 3 (2), 3 (3), ... Through the connection terminal 108 and the LANI / F107.

The packet decomposition / generation unit 103 mainly connects a terminal device connected to the telephone network and a telephone terminal such as a telephone terminal 3 (1), 3 (2), 3 (3), etc. under the SIP server 1. Decomposes and generates packets of data to be sent and received when making a call between them. For example, a voice packet to be transmitted to a terminal device connected to a telephone network from a telephone terminal 3 (1), 3 (2), 3 (3), ... Connected to the SIP server 1 is a connection terminal 108, LANI. It is assumed that it is supplied to the control unit 110 through / F107. In this case, the voice packet is supplied from the control unit 110 to the packet decomposition / generation unit 103, where the packet is decomposed and voice data is extracted, and this voice data is passed through the telephone network I / F 104 and the connection terminal 105 to the telephone network. It is sent to and sent to the target destination.

Further, the voice signal from the terminal device connected to the telephone network to the telephone terminal 3 (1), 3 (2), 3 (3), ... Connected to the SIP server 1 is the connection terminal 105, the telephone network I. It is converted into voice data (digital data) through / F104 and supplied to the control unit 110. The voice data is supplied from the control unit 110 to the packet decomposition / generation unit 103, and after being made into a packet of a predetermined format here, it is sent to the LAN through the LANI / F107 and the connection terminal 108 to be a target telephone terminal. It is transmitted to 3 (1), 3 (2), 3 (3), ....

Packets are transmitted and received between the external terminal device connected to the IP network and the telephone terminals 3 (1), 3 (2), 3 (3), ... Connected to the SIP server 1. Therefore, the packet decomposition / generation unit 103 does not decompose or generate the packet, and the IP networks I / F102 and LANI / F107 arrange the data format and transmit / receive the packet as it is. Similarly, since packets are sent and received between the telephone terminals 3 (1), 3 (2), 3 (3), ... Connected to the SIP server 1, the packet decomposition / generation unit 103 decomposes the packets. And generation is not performed, and packets are sent and received through LANI / F107.

Then, the address management DB 106 stores and holds address information about a terminal device that is connected to the IP network 6 or LAN 2 and may be called through the SIP server 1 in order to realize the registrar server function. Specifically, the control unit 110 of the SIP server 1 receives registration requests (register requests) from various terminal devices connected to the IP network I / F 102 and LANI / F 107. In this case, the control unit 110 extracts address information such as an IP address and a URI (Uniform Resource Identifier) included in the received request. Then, the control unit 110 registers the extracted address information in the address management DB 106, and updates the registration information of the address management DB 106 using the extracted address information.

In this way, the information registered and managed in the address management DB 106 is referred to, and there is a request from the telephone terminals 3 (1), 3 (2), 3 (3), ... Make sure to identify the communication destination. Then, the SIP server 1 realizes a function as a proxy server for transferring information (packet data) to be transmitted to the specified destination. In addition, the information registered and managed in the address management DB 106 is also used for determining incoming calls to the telephone terminals 3 (1), 3 (2), 3 (3), ... Be done.

FIG. 6 is a diagram for explaining an example of stored data of the address management DB 106. The address management DB 106 of the SIP server 1 includes the address information of the terminal devices of other IP telephone systems connected to the IP network, as well as the telephone terminals 3 (1), 3 (2) connected to the SIP server 1 via LAN. It also manages the address information about 3 (3), ....

Basically, the management information formed in the address management DB 106 of the SIP server 1 is the IP address or the address information such as URI (SIP URI) transmitted from the terminal device connected to the IP network as described above. be. In the address management DB 106 of the SIP server 1 of this embodiment, as shown in FIG. 3, the telephone terminals 3 (1), 3 (2), 3 (3), ... In addition to the IP address, which is the address information, the extension number and port number are also managed. In addition to this, information unique to each telephone terminal such as URL and MAC address can be managed for each telephone terminal.

Then, a SIP server sends a call request (call request) to an external terminal device connected to the IP network from the telephone terminals 3 (1), 3 (2), 3 (3), ... Of the telephone system of this embodiment. It is assumed that 1 has accepted. In this case, the control unit 110 of the SIP server 1 identifies the target destination terminal device based on the management information of its own address management DB 106, and transfers a message to the specified terminal device. .. Of course, the SIP server 1 forms a call message to an external telephone terminal connected to the telephone network, and sends the outgoing message to the external telephone terminal, thereby connecting to the telephone network, as in the case of the conventional main device. You can make a call to a telephone terminal.

Further, it is assumed that the SIP server 1 accepts an incoming call request (outside line incoming call) for a telephone terminal 3 (1), 3 (2), 3 (3), ... Connected to the LAN 2 through the IP network 6 or the telephone network 7. .. In this case, the control unit 110 of the SIP server 1 receives the transmitted outgoing message and sends it into its own system. As a result, it is possible to answer an incoming call through the telephone terminals 3 (1), 3 (2), 3 (3), ..., Which are connected to the SIP server 1.

As described above, the SIP server 1 of this embodiment includes the packet decomposition / generation unit 103 and the address management DB 106, and relays messages between terminal devices connected to various networks to which the SIP server 1 is connected. be able to. Therefore, the SIP server 1 of this embodiment can make a connection between an external line and an internal line, a connection between internal lines, and notify a subordinate telephone terminal or the like of the usage status of a communication line.

Further, the control unit 110 of the SIP server 1 grasps the communication line in use and the vacant communication line through the IP network I / F102, the telephone network I / F104, and the LANI / F107, and appropriately exchanges the lines. You can also. Further, the control unit 110 may supply LEDs or the like for each of the telephone terminals 3 (1), 3 (2), 3 (3), ... Control information for controlling lighting, extinguishing, etc. is formed and provided through LAN2.

Further, as described above, the SIP server 1 of this embodiment has a direct-in dial function as an individual incoming call function. Therefore, it is assumed that an outside telephone terminal such as the telephone terminal 9 makes a call by inputting an extension number such as "# extension number" in addition to the representative telephone number. In this case, the control unit 110 of the SIP server 1 can directly notify the incoming call only to the telephone terminal specified by the input extension number, instead of making a so-called group incoming call.

Then, when an individual incoming call occurs to the telephone terminal 3 (1), 3 (2), 3 (3), ... Connected to the SIP server 1 via LAN 2, the user responds by proxy as described above. The proxy response function can be used by inputting information. In the proxy answering function, the SIP server 1 and the telephone terminal of the called party connected to the SIP server 1 and the telephone terminal of the proxy answering destination cooperate with each other, so that the answering operation is not performed on the telephone terminal of the called party. , It is a function that can request a response from the telephone terminal of the proxy answer destination.

In the telephone system of this embodiment, the proxy answering function can be realized by two methods. The first method enables a proxy response by returning a special response corresponding to the proxy answer function to the session start request including the proxy response information from the call source telephone terminal. It is something to do. The second method is to enable a proxy response by utilizing the conventional hold function and transfer function by returning a normal response without returning a special response request by the telephone terminal of the proxy answer destination. Is.

Hereinafter, the above-mentioned first and second methods for realizing the proxy response function will be specifically described. In the following, a direct in-dial function is used to make a direct call from the outside line telephone terminal 9 to the telephone terminal 3 (1) under the SIP server 1 to receive an individual call, and the user of the telephone terminal 3 (1) makes a call. An example will be described in which the user of the terminal 3 (5) is made to respond by proxy. Further, both of the first and second methods described below can be realized by using the existing sequence according to SIP.

[First method to realize proxy response]
FIG. 7 is a sequence diagram for explaining a first method for enabling a surrogate response. The first method is that, as described above, the proxy response destination telephone terminal returns a special response corresponding to the proxy response function in response to the session start request including the proxy response information from the call source telephone terminal. Allows proxy response.

As shown in FIG. 7, a telephone call is made to the telephone terminal 3 (1) whose extension number is "101" under the SIP server 1 by using the direct-in dial function from the external telephone terminal 9. It is assumed that the call is made and an outside line incoming call occurs on the SIP server 1 (step S1). The SIP server 1 receives an outgoing message from the external telephone terminal 9 through the connection terminal 101 and the IP network I / F 102, decomposes it by the packet decomposition / generation unit 103, and supplies it to the control unit 110. As a result, the control unit 110 recognizes that an individual incoming call has occurred in the subordinate telephone terminal 3 (1).

The control unit 110 of the SIP server 1 forms a session start request for notifying that an individual incoming call has occurred, supplies this to the packet decomposition / generation unit 103, and packetizes the request to the telephone terminal 3 (1). Generate a packet for. Then, the control unit 110 transmits the packetized session start request (INVITE message) to the telephone terminal 3 (1) (step S2). In this way, in the SIP server 1, the control unit 110 and the packet decomposition / generation unit 103 cooperate with each other for the subordinate telephone terminals 3 (1), 3 (2), 3 (3), and the like. Generates the control packet to be provided.

Then, the session start request transmitted from the SIP server 1 is received by the telephone terminal 3 (1), packet-decomposed by the packet processing unit 303, and the result is provided to the control unit 310. As a result, the control unit 310 of the telephone terminal 3 (1) recognizes that an individual incoming call has occurred in the own unit. The control unit 310 of the telephone terminal 3 (1) controls the packet processing unit 303 to sequentially form a packet with a response code “100” and a packet with a response code “180”, and transmit the packets to the SIP server 1. (Step S3). The packet with the response code "100" indicates that processing for the received session start request is being attempted. Further, the packet of the response code "180" indicates that the call is in progress.

After that, the control unit 310 of the telephone terminal 3 (1) performs a process of notifying the user that there is an incoming call to the own unit (step S4). In step S4, the control unit 310 controls the ringer 307 to emit a ringtone, and displays a message on the display 312 notifying that the incoming call is an individual incoming call from the external telephone terminal 9. Then, the control unit 310 of the telephone terminal 3 (1) receives a response operation or the like from the user (step S5). In step S5, if the user of the telephone terminal 3 (1) answers the individual incoming call, the handset 304 may be picked up from the housing of the telephone terminal 3 (1) and turned off-hook.

However, here, in order for the user of the telephone terminal 3 (1) to use the proxy response function, the extension number "105" of the telephone terminal 3 (5), which is the proxy response destination, and the proxy response special number "*". It is assumed that the proxy response information "105 * 01" consisting of "01" is input through the operation input unit 313. When the proxy response information is input, the control unit 310 of the telephone terminal 3 (1) ends the notification of the individual incoming call through the ringer 307 or the display 312 (step S6).

Then, the control unit 310 of the telephone terminal 3 (1) controls the proxy response processing unit 321 to generate a session start request (INVITE message) addressed to the SIP server 1 including the proxy response information received in step S6 (INVITE message). Step S7). The control unit 310 of the telephone terminal 3 (1) packetizes the generated session start request by the packet processing unit 303 and transmits it to the SIP server 1 through the LAN 2 (step S8). The session start request generated and transmitted in steps S7 and S8 requests a proxy response from the telephone terminal 3 (5).

The SIP server 1 that has received the session start request forms a packet with a response code "100" indicating that processing for the received session start request is being attempted, and this is sent to the request source telephone terminal 3 (1) through the LAN 2. ) (Step S9). The packet of the response code "100" is generated by the packet decomposition / generation unit 103 under the control of the control unit 110. Then, the session start request received by the SIP server 1 requests a proxy response from the telephone terminal 3 (5) including the proxy response information. Therefore, the control unit 310 of the SIP server 1 transmits the session start request including the proxy response information to the telephone terminal 3 (5) having the extension number “105” (step S10).

In the telephone terminal 3 (5) that has received the session start request including the proxy response information, the control unit 310 controls the packet processing unit 303 to send a packet with a response code “100” and a packet with a response code “180”. It is sequentially formed and transmitted to the SIP server 1 (step S11). The process of this step S11 is the same process as the process of step S3 described above, and it is being called that the telephone terminal 3 (5) of the incoming call answering destination is trying the process (answer code "100"). It notifies the SIP server 1 that there is something (response code "180").

After that, in the telephone terminal 3 (5) of the proxy response destination, the control unit 310 functions to perform a process of notifying the user that the own machine has a request for a proxy response (step S12). In step S12, the control unit 310 controls the ringer 307 to emit a ringtone, and displays a message on the display 312 notifying that there is a proxy response request from, for example, the telephone terminal 3 (1). Then, the control unit 310 of the telephone terminal 3 (5) receives a response operation or the like from the user (step S13).

In step S13, it is assumed that the user of the telephone terminal 3 (5) responds to the proxy response request by picking up the handset 304 from the housing of the telephone terminal 3 (1) and turning it off-hook. In this case, the control unit 310 of the telephone terminal 3 (5) controls the proxy response processing unit 321 to generate a session start request (INVITE message) addressed to the SIP server 1 including the proxy response special number “* 01” (INVITE message). Step S14). Then, the control unit 310 of the telephone terminal 3 (5) packetizes the generated session start request by the packet processing unit 303, sends it to the LAN 2, and sends it to the SIP server 1 (step S15). The session start request generated and transmitted in steps S14 and S15 notifies (requests) that the SIP server 1 responds to the proxy response.

Then, the control unit 110 of the SIP server 1 forms a packet of the response code "100" indicating that the processing for the notification (request) corresponding to the proxy response is being tried, and sends this to the proxy response destination through LAN2. (Step S16). Further, the control unit 110 of the SIP server 1 forms a packet of the response code “200” indicating that the notification (request) corresponding to the proxy response is correctly accepted and approved, and this is sent as a proxy response through LAN2. It is transmitted to the previous telephone terminal 3 (5) (step S17). These packets are generated by the packet decomposition / generation unit 103 under the control of the control unit 110.

After that, the SIP server 1 is set to answer the incoming call from the external line telephone terminal 9 which is the source, and makes a call between the external telephone terminal 9 of the source and the telephone terminal 3 (5) of the proxy answer destination. A line is connected so that a call can be made (step S18). In this way, up to step S18, the proxy response destination's proxy response request is received from the call source's telephone terminal 3 (1) without answering the external line incoming call from the call source's telephone terminal 9. Only when the telephone terminal 3 (5) accepts the call, it answers the incoming call from the telephone terminal 9 which is the caller. Therefore, the user of the telephone terminal 3 (1) of the original individual recipient (the caller who requested the proxy response) and the user of the caller's telephone terminal 9 do not make a call. From the beginning, a telephone line can be connected between the user of the calling terminal 9 and the user of the proxy answering telephone terminal 3 (5) to start a call.

After that, the control unit 110 of the SIP server 1 forms a cancel packet for canceling the outside line incoming call from the outside line telephone terminal 9 generated in the telephone terminal 3 (1) which is an individual incoming call source, and receives the incoming call through the LAN 2. It is transmitted to the original telephone terminal 3 (1) (step S19). In response to this, in the destination telephone terminal 3 (1), the proxy response processing unit 321 and the packet processing unit 303 function to form a packet with a response code "487" and a packet with an ACK message, and these are formed. The packets are sequentially transmitted to the SIP server 1 through LAN 2 (step S20). In this case, the response code "487" indicates that the individual incoming call has been canceled, and the ACK message indicates that the cancellation of the individual incoming call has been approved.

Further, in the incoming telephone terminal 3 (1), the proxy response processing unit 321 and the packet processing unit 303 function to form a cancel packet for canceling the proxy response request to the telephone terminal 3 (5). Is transmitted to the SIP server 1 through LAN 2 (step S21). In response to this, in the SIP server 1, the control unit 110 functions to form a packet of the response code "487" and a packet of the ACK message, and sequentially transmit these to the telephone terminal 3 (1) through the LAN 2. (Step S22). The response code "487" indicates that the proxy response request has been canceled in this case, and the ACK message indicates that the cancellation of the proxy response request has been approved.

In this way, a normal telephone line is connected between the external telephone terminal 9 and the proxy answering destination telephone terminal 3 (5), and a telephone call is made. Therefore, when the call ends and one of them performs an off-hook operation, the call line connected in step S18 is released according to a normal sequence.

[Second method]
8 and 9 are sequence diagrams for explaining a second method for enabling a surrogate response. In this second method, as described above, the telephone terminal of the proxy answering destination returns a normal answer without returning a special answer request, thereby making a proxy response using the hold function and the transfer function. It makes it possible.

First, as can be seen by comparing FIG. 8 with FIG. 7 described above, the processes from step S1 to step S13 are the first method shown in FIG. 7 also in the second methods shown in FIGS. 8 and 9. It is done in the same way as. Therefore, the outline of the processes from step S1 to step S13 will be summarized, and the parts peculiar to the second method that follow will be described in detail.

That is, when an individual incoming call is generated from the outside line telephone terminal 9 to the telephone terminal 3 (1) under the SIP server 1 by the direct-in dial function (step S1), this is from the SIP server 1 to the telephone terminal 3 (1). ) Is notified (steps S2 and S3). In the telephone terminal 3 (1), the notification processing of the individual incoming call is performed (step S4), the answering operation is accepted (step S5), and the notification processing of the individual incoming call is completed (step S6). Then, it is assumed that the proxy response information "105 * 01" is input in order to have the user of the telephone terminal 3 (5) respond by proxy in step S5. In this case, a session start request including the proxy response information is generated (step S7) and transmitted to the SIP server 1 (steps S8 and S9).

The session start request including the proxy response information is transmitted from the SIP server 1 to the proxy response destination telephone terminal 3 (5) (steps S10 and S11). Then, in the telephone terminal 3 (5), for example, a process of notifying the user that there is a request for a proxy response from the telephone terminal 3 (1) is performed (step S12), and the response operation from the user is accepted. (Step S13). In step S13, it is assumed that an off-hook operation is performed in which the handset 304 of the telephone terminal 3 (5) is picked up from the housing of the telephone terminal 3 (5) in order to respond to the request for the proxy response. In this case, the processing after step S30 is different from the first method shown in FIG. 7. Hereinafter, the second method will be described in detail.

As described above, it is assumed that the off-hook operation is performed in step S13 in order to respond to the request for the proxy response. In this case, the control unit 310 of the telephone terminal 3 (5) of the proxy response destination controls the packet processing unit 303 to generate a packet of the response code “200” indicating that the request is to be met (step S30). Is transmitted to the SIP server 1 (step S31). The control unit 110 of the SIP server 1 responds to the packet of the response code "200" from the telephone terminal 3 (5) which is the proxy answer destination, and responds to the telephone terminal 3 (1) of the called destination with the response code "200". Packet is generated and transmitted (step S32). As a result, the destination telephone terminal 3 (1) recognizes that the proxy response destination telephone terminal 3 (5) has accepted the proxy response request in response to the proxy response request from its own unit, and receives an incoming call. The original telephone terminal 3 (1) and the proxy answering destination telephone terminal 3 (5) are in a call state.

Then, the control unit 310 of the incoming telephone terminal 3 (1) generates a session start request (holding INVITE) for suspending the call state between the own unit and the proxy answering destination telephone terminal 3 (5). , This is transmitted to the SIP server 1 (step S33). The session start request (pending INVITE) is generated and transmitted by the holding processing unit 322 and the packet processing unit 303 under the control of the control unit 310. Further, the hold processing unit 322 of the telephone terminal 3 (1) functions to maintain the hold state of the call state between the own unit and the telephone terminal 3 (5) of the proxy answering destination.

The control unit 110 of the SIP server 1 that has received the session start request (pending INVITE) calls the proxy answering destination telephone terminal 3 (5) that is in a call state with the receiving telephone terminal 3 (1). Then, a session start request (pending INVITE) is transmitted (step S34). In response to this, the control unit 310 of the telephone terminal 3 (5) of the proxy response destination controls the hold processing unit 322 and the packet processing unit 303 to generate a packet with a response code "200" indicating that the request is to be met. Then, this is transmitted to the SIP server 1 (step S35). In this case, the packet with the response code "200" notifies the SIP server 1 that "holding has been established". Further, the hold processing unit 322 of the telephone terminal 3 (5) functions to keep the call state between the own unit and the call source telephone terminal 3 (1) on hold.

Then, the control unit 110 of the SIP server 1 receives the packet of the response code "200" as the incoming source in response to the packet of the response code "200" from the telephone terminal 3 (5) of the proxy response destination, and requests the hold. It is transmitted to the original telephone terminal 3 (1) (step S36). The packet of the response code "200" from the SIP server 1 notifies the telephone terminal 3 (1) of the called party that "holding has been established". As a result, the call state between the incoming telephone terminal 3 (1) and the proxy answering destination telephone terminal 3 (5) is put on hold at both telephone terminals.

Then, the control unit 310 of the incoming telephone terminal 3 (1) controls the hold processing unit 322 and the packet processing unit 303 to generate a packet of the response code "200" and transmit it to the SIP server 1 (step). S37). The transmission of the packet of the response code "200" notifies the SIP server 1 that the packet is to be answered to the external line to be transferred, that is, the individual incoming call generated in the telephone terminal 3 (1). At the time when the process of step S37 is performed, the standard function is "a state in which a call can be made with the transfer destination (a state in which a transfer destination call is possible)".

After that, the process proceeds to the process shown in the sequence diagram of FIG. 9, and the standard function "transfer after response" is performed. That is, the control unit 310 of the incoming telephone terminal 3 (1) controls the transfer processing unit 323 and the packet processing unit 303 to form a transfer instruction (REFER), which is transmitted to the SIP server 1 (step). S38). This transfer instruction is sent to the telephone terminal 3 (1) with respect to the proxy answering destination telephone terminal 3 (5) that is on hold with the incoming telephone terminal 3 (1). It is instructed (notified) to transfer the individual incoming call from 9. That is, it is instructed to turn (transfer) a call from an outside line on the telephone terminal 3 (1) to the telephone terminal 3 (5).

When the control unit 110 of the SIP server 1 receives the transfer instruction from the telephone terminal 3 (1), it generates a packet of the response code "100" and transmits it to the telephone terminal 3 (1), and the transfer instruction is being tried. Notify that (step S39). Then, the control unit 110 of the SIP server 1 transmits a transfer instruction (REFER) to the telephone terminal 3 (5) of the proxy answering destination that holds the call state with the telephone terminal 3 (1) (step). S40).

In the proxy answering destination telephone terminal 3 (5), the control unit 310 controls the transfer processing unit 323 and the packet processing unit 303 to generate a packet with a response code “100” indicating that a transfer instruction is being tried. Generate and send to SIP server 1 (step S41). Then, in the proxy response destination telephone terminal 3 (5), the control unit 310 controls the transfer processing unit 323 and the packet processing unit 303 to generate a packet with a response code “202” indicating that the transfer instruction is accepted. Then, it is transmitted to the SIP server 1 (step S42). In response to this, the control unit 110 of the SIP server 1 generates a packet of the response code "202" indicating that the transfer instruction to the incoming telephone terminal 3 (1) is accepted, and the telephone terminal 3 (1). (Step S43).

In this way, after the call state is suspended between the incoming telephone terminal 3 (1) and the proxy answering destination telephone terminal 3 (5) by the processes of steps S30 to S43, the telephone terminal 3 ( The outside line from the telephone terminal 9 that responded in 1) is transferred to the telephone terminal 3 (5). As a result, a telephone line is connected between the telephone terminal 9 of the outside line of the calling source and the telephone terminal 3 (5) of the proxy answering destination (step S44), and a telephone call can be made. In this case, although the incoming call terminal 3 (1) responds to the individual incoming call, it is immediately transferred to the proxy answering destination telephone terminal 3 (5), so that the called source telephone terminal 3 ( The user of 1) does not directly answer the individual incoming call.

After that, the control unit 110 of the SIP server 1 forms a session end instruction (BYE) instructing to disconnect the extension connected to the incoming telephone terminal 3 (1), and this is used as a proxy response destination. It is transmitted to the telephone terminal 3 (5) of (step S45). In response to this, the control unit 310 of the telephone terminal 3 (5) of the proxy response destination controls the packet processing unit 303 to generate a packet of the response code "200" indicating that the session end instruction is accepted. , This is transmitted to the SIP server 1 (step S46).

Similarly, the control unit 110 of the SIP server 1 forms a session end instruction (BYE) instructing to disconnect the extension connected to the proxy answering destination telephone terminal 3 (5), and this is the call source. It is transmitted to the telephone terminal 3 (1) of (step S47). In response to this, the control unit 310 of the incoming telephone terminal 3 (1) controls the packet processing unit 303 to generate a packet with a response code "200" indicating that the session end instruction is to be answered. This is transmitted to the SIP server 1 (step S48).

Further, the control unit 310 of the incoming telephone terminal 3 (1) controls the packet processing unit 303 to instruct to disconnect the external line connected to the external telephone terminal 9 (BYE). ), And this is transmitted to the SIP server 1 (step S49). In response to this, the control unit 310 of the SIP server 1 generates a packet of the response code “200” indicating that the session end instruction is responded to, and transmits the packet to the telephone terminal 3 (1) of the called party (step S50). ).

By the processing of steps S45 to S50, the extension and the outside line that are no longer needed due to the proxy answer are disconnected, and the telephone terminal 9 of the outside line and the telephone terminal 3 (5) of the proxy answer destination are simply connected. The call line connected between is maintained. Therefore, when the call ends and one of them performs an off-hook operation, the call line connected in step S44 is released according to a normal sequence.

Further, in the case of this second method, since the proxy answer function can be realized by using the standard function (standard sequence) in the SIP that realizes the hold and transfer, the telephone system is not significantly changed.

[Effect of embodiment]
When an individual incoming call occurs to a telephone terminal connected to the SIP server 1, the user of the telephone terminal can use the proxy answer function by a simple operation such as inputting proxy answer information. The proxy response information is information consisting of the extension number of the telephone terminal to be the proxy response destination and the proxy response special number, and is information that can be easily input. Therefore, the proxy response function can be used easily and quickly. ..

In addition, the user of the calling terminal can quickly connect to the appropriate person in charge without causing the inconvenience that it takes time for another person to answer the call even though the call is answered. You will be able to make a call.

Further, since the proxy answer function realized in the telephone system of this embodiment can realize the proxy answer function by using the standard function (standard sequence) in SIP, the SIP server 1 and the telephone terminal constituting the telephone system can be realized. No major changes are made to 3 (1), 3 (2), 3 (3), ....

[Modification example]
In the above-described embodiment, the case where an individual call is received by the direct-in dial function is described as an example, but the case where an individual call is made by the dial-in function in which an additional telephone number is used also occurs. Similarly, the proxy response function can be realized.

Further, in the above-described embodiment, the proxy response information is input through the operation input unit 313, but the present invention is not limited to this. In recent years, some telephone terminals are equipped with a touch panel consisting of a display element such as a liquid crystal display (LCD) having a relatively large display screen and a touch sensor. Therefore, for example, when using the proxy answer function, when the flexible key to which the proxy answer function is assigned is pressed, a list of telephone terminals (extension telephone terminals) that can be selected as the proxy answer destination is displayed. To make it selectable. Then, when a telephone terminal is selected from the list, the proxy response information including the extension number of the telephone terminal and the proxy response special number may be formed.

Further, in the above-described embodiment, the case where the SIP server is used as the telephone control device has been described as an example, but the present invention is not limited to this. The present invention can be applied to a telephone system using a telephone control device other than the SIP server as long as the control sequence as to be performed by the telephone system of the above-described embodiment is feasible.

Further, in the above-described embodiment, when an individual incoming call from an outside line occurs in the telephone terminal 3 (1) connected to the SIP server 1, the user of the telephone terminal 3 (5) responds by proxy. I explained the case of getting it. However, individual incoming calls are not limited to those from outside lines. Incoming calls from extensions are also individual incoming calls to your own device if you use the destination phone terminal. Therefore, for an incoming call from an extension line, it is possible to request a proxy response from a user of another telephone terminal in the same manner as an individual incoming call from an outside line.

Further, when necessary notifications and notifications such as incoming calls are given to the user, the notification may be made by using the lighting and blinking of the LED (Light Emitting Diode) provided in the telephone terminal.

Further, in the above-described embodiment, it has been described that the proxy response function may be assigned to the flexible key, but the present invention is not limited to this. A function key dedicated to proxy answering may be provided in the telephone terminal.

[others]
As is clear from the description of the above-described embodiment, the function of the incoming call notification means of the telephone terminal (hereinafter, simply referred to as a telephone terminal) in which the individual incoming call addressed to the own machine in the claim has occurred is the function of the embodiment. The ringer 307 and the display 312 of the telephone terminal 3 (1) (hereinafter, simply referred to as the telephone terminal 3 (1)) are realized. Further, the function of the receiving means of the telephone terminal is realized by the operation input unit 313 of the telephone terminal 3 (1), and the function of the forming means of the telephone terminal is realized by the proxy response processing unit 321 of the telephone terminal 3 (1). ing. Further, the function of the transmission means of the telephone terminal is realized by the LANI / F302 of the telephone terminal 3 (1). Further, the functions of the hold request means and the original hold processing means of the telephone terminal are realized by the hold processing unit 322 of the telephone terminal 3 (1), and the function of the transfer instruction means of the telephone terminal is that of the telephone terminal 3 (1). The transfer processing unit 323 is realized.

Further, the function of the notification means of the other destination telephone terminal (hereinafter, simply referred to as another telephone terminal) to be the new answer destination of the claim is the telephone terminal 3 (5) of the embodiment (hereinafter, simply referred to as simply another telephone terminal). The ringer 307 and the display 312 of the telephone terminal 3 (5) are realized. Further, the function of the proxy answer operation receiving means of the other telephone terminal is realized by the operation input unit 313 of the telephone terminal 3 (5). Further, the function of the start request forming means of the other telephone terminal is realized by the proxy response processing unit 321 of the telephone terminal 3 (5), and the function of the start request transmitting means of the other telephone terminal is the function of the telephone terminal 3 (5). The surrogate response processing unit 321 of the above is realized.

Further, the function of the response transmission means of the other telephone terminal is realized by the packet processing unit 303 of the telephone terminal 3 (5), and the function of the hold response transmission means of the other telephone terminal is the hold of the telephone terminal 3 (5). The processing unit 322 and the packet processing unit 303 are realized, and the function of the front-end hold processing means of another telephone terminal is
The hold processing unit 322 of the telephone terminal 3 (5) is realized. Further, the function of the acceptance notification transmission means of the other telephone terminal is realized by the transfer processing unit 323 and the packet processing unit 303 of the telephone terminal 3 (5).

Further, the function of the providing means of the telephone control device (hereinafter, simply referred to as a telephone control device) according to the claim is the control unit 110 of the SIP server 1 (hereinafter, simply referred to as SIP server 1) of the embodiment. And LANI / F107 are realized. Further, the function of the telephone line connection means of the telephone control device is realized by the control unit 110 of the SIP server 1. Further, each function of the incoming call canceling means, the hold request providing means, the hold answer providing means, the transfer instruction providing means, the transfer line connecting means , and the extension disconnecting means of the telephone control device is mainly functioned by the control unit 110 of the SIP server 1. Has been realized.

1 ... SIP server, 101 ... connection terminal to IP network, 102 ... IP network I / F, 103 ... packet decomposition / generator, 104 ... telephone I / F, 105 ... connection terminal to telephone network, 106 ... address management DB, 107 ... LANI / F, 108 ... LAN connection terminal, 2 ... LAN, 3 (1), 3 (2), 3 (3), 3 (4), 3 (5) ... Telephone terminal, 301 ... LAN connection Terminal, 302 ... LANI / F, 303 ... Packet processing unit, 304 ... Handset, 305 ... Codec, 306 ... Hook switch unit, 307 ... Ringer, 310 ... Control unit, 311 ... Display controller, 312 ... Display, 313 ... Operation input Unit 314 ... Operation input I / F, 321 ... Proxy response processing unit 322 ... Hold processing unit 323 ... Transfer processing unit

Claims (6)

A telephone system in which multiple telephone terminals are connected to a telephone control device.
The caller's telephone terminal, which is one of the plurality of telephone terminals and is notified of an incoming call addressed to its own device, is
Incoming call notification means to notify the user when an incoming call to your own device occurs,
Identification information of another telephone terminal that is another one of the plurality of telephone terminals and should be a new answer destination on behalf of the own unit when the incoming call is notified through the incoming call notification means. And a reception means that accepts the input of proxy response information consisting of the proxy response special number without answering the incoming call.
When the proxy response information is received through the reception means, a forming means for forming a proxy response request including the proxy response information and a forming means.
A transmission means for transmitting the proxy response request formed by the forming means to the telephone control device is provided.
The telephone control device is
When the proxy response request is received, the providing means for providing the proxy response request to the other telephone terminal specified by the identification information of the proxy response information included in the proxy response request .
A call line that enables a call by connecting a call line between the caller's telephone terminal and the other telephone terminal when a start request including the proxy answer special number is received from the other telephone terminal. Connection method and
An incoming call canceling means for canceling an outside line incoming call generated in the called party's telephone terminal by communicating with the called party's telephone terminal after connecting the call line through the call line connecting means.
Equipped with
The other telephone terminals that should be the new answer destination are
When the proxy response request addressed to the own machine is received, the notification means for notifying the user that the proxy response request has been provided to the own machine and the notification means.
When the proxy response request is notified through the notification means, the proxy response operation receiving means for receiving the response operation from the user and the proxy response operation receiving means .
When the response operation is received through the proxy response operation receiving means, the start request transmitting means including the proxy response special number is formed and transmitted to the telephone control device.
A telephone system characterized by being equipped with. The telephone control device of a telephone system configured by connecting a plurality of telephone terminals to a telephone control device.
The caller's telephone terminal, which is one of the plurality of telephone terminals and is notified of an incoming call addressed to its own device, serves as an incoming call notification means for notifying the user when an incoming call addressed to its own device occurs. , Identification of another telephone terminal that is one of the plurality of telephone terminals and should be a new answering destination on behalf of the own unit when notifying that there is an incoming call through the incoming call notification means. A reception means that accepts input of proxy response information consisting of information and a proxy response special number without answering an incoming call, and a proxy response request including the proxy response information when the proxy response information is received through the reception means. It includes a forming means for forming and a transmitting means for transmitting the proxy response request formed by the forming means to the telephone control device.
When the other telephone terminal to be a new response destination receives a proxy response request addressed to its own machine, the notification means for notifying the user that the proxy response request has been provided to the own machine and the notification. When the proxy response operation is notified through the means, the proxy response operation receiving means for accepting the response operation from the user and the proxy response operation receiving means are received, the proxy response is received. It is provided with a start request transmission means for forming a start request including a special number and transmitting the start request to the telephone control device.
When the proxy response request is received from the telephone terminal of the called source, the proxy response request is made to the other telephone terminal specified by the identification information of the proxy response information included in the proxy response request. Providing means and providing
A call that enables a call by connecting a call line between the caller's telephone terminal and the other telephone terminal when the start request including the proxy answer special number is received from the other telephone terminal. Line connection means and
An incoming call canceling means for canceling an outside line incoming call generated in the called party's telephone terminal by communicating with the called party's telephone terminal after connecting the call line through the call line connecting means.
A telephone control device characterized by being provided with. The telephone terminal of a telephone system configured by connecting a plurality of telephone terminals to a telephone control device.
When the telephone control device receives a proxy response request from the telephone terminal of the called party, the telephone control device responds to another telephone terminal specified by the identification information of the proxy response information included in the proxy response request. When a providing means for providing a request and a start request including a proxy response special number from the other telephone terminal are received, a telephone line is connected between the calling terminal and the other destination telephone terminal. Generated at the called source telephone terminal by communicating between the call line connecting means that enables a call and the call line connecting means and then communicating with the called source telephone terminal. It is equipped with an incoming call canceling means for canceling an incoming call from an outside line.
It is a means that functions when the telephone terminal of the called source is notified of an incoming call addressed to its own device.
Incoming call notification means to notify the user when an incoming call to your own device occurs,
Identification information of another telephone terminal that is another one of the plurality of telephone terminals and should be a new answer destination on behalf of the own unit when the incoming call is notified through the incoming call notification means. And a reception means that accepts the input of proxy response information consisting of the proxy response special number without answering the incoming call.
When the proxy response information is received through the reception means, a forming means for forming a proxy response request including the proxy response information and a forming means.
A transmission means for transmitting the proxy response request formed by the forming means to the telephone control device is provided.
By receiving the proxy response request addressed to the own machine, it is a means that functions when the other telephone terminal should be a new response destination.
When the proxy response request addressed to the own machine is received, the notification means for notifying the user that the proxy response request has been provided to the own machine, and
When the proxy response request is notified through the notification means, the proxy response operation receiving means for receiving the response operation from the user and the proxy response operation receiving means.
When the response operation is received through the proxy response operation receiving means, the start request transmitting means including the proxy response special number is formed and transmitted to the telephone control device.
A telephone terminal characterized by being equipped with. A telephone system in which multiple telephone terminals are connected to a telephone control device.
The caller's telephone terminal, which is one of the plurality of telephone terminals and is notified of an incoming call addressed to its own device, is
Incoming call notification means to notify the user when an incoming call to your own device occurs,
Identification information of another telephone terminal that is another one of the plurality of telephone terminals and should be a new answer destination on behalf of the own unit when the incoming call is notified through the incoming call notification means. And a reception means that accepts the input of proxy response information consisting of the proxy response special number without answering the incoming call.
When the proxy response information is received through the reception means, a forming means for forming a proxy response request including the proxy response information and a forming means.
A transmission means for transmitting the proxy response request formed by the forming means to the telephone control device, and a transmission means.
Response information for the proxy answer request is provided from the telephone control device, and when an extension is connected between the own unit and the other telephone terminal, a hold request for putting the call state on hold is formed. The hold request means to be transmitted to the telephone control device and
After transmitting the hold request through the hold request means, the original hold processing means for keeping the call state between the own unit and the other telephone terminal in the hold state, and the original hold processing means.
When a hold response is received from the telephone control device, a transfer instruction means for forming a transfer instruction instructing the transfer of an incoming call addressed to the own unit to the other telephone terminal and transmitting the incoming call to the telephone control device is provided.
Equipped with
The telephone control device is
When the proxy response request is received, the providing means for providing the proxy response request to the other telephone terminal specified by the identification information of the proxy response information included in the proxy response request.
When the response information is received from the other telephone terminal that has provided the proxy response request, the response information is provided to the incoming telephone terminal, and the incoming telephone terminal and the other telephone terminal are provided. An extension connection means that connects the extension to a telephone terminal to put it in a call state,
When the hold request is received from the call source telephone terminal, the hold request providing means for providing the hold request to the other telephone terminal and the hold request providing means.
When a hold response is received from the other telephone terminal that has provided the hold request, the hold response providing means that provides the hold response to the called source telephone terminal and the hold response providing means.
A transfer instruction providing means for providing a transfer instruction for instructing the other telephone terminal to transfer an incoming call to the call source's telephone terminal when the transfer instruction is received from the call source's telephone terminal. When,
A transfer line that enables a call by connecting a call line between the caller's telephone terminal and the other telephone terminal when an acceptance notification to the effect that the transfer instruction is accepted is received from the other telephone terminal. Connection method and
An extension disconnecting means for disconnecting the extension connected between the called source telephone terminal and the other telephone terminal after connecting the call line through the transfer line connecting means.
Equipped with
The other telephone terminals that should be the new answer destination are
When the proxy response request addressed to the own machine is received, the notification means for notifying the user that the proxy response request has been provided to the own machine and the notification means.
When the proxy response request is notified through the notification means, the proxy response operation receiving means for receiving the response operation from the user and the proxy response operation receiving means.
A response transmission means that forms the response information indicating that the request is accepted when the response operation is received through the proxy response operation reception means, and transmits the response information to the telephone control device.
When the hold request from the telephone control device is received, the hold response transmission means that forms the hold response indicating that the request is accepted and transmits the hold response to the telephone control device, and the hold response transmission means.
After transmitting the hold response through the hold response transmission means, a destination hold processing means that keeps the call state between the own unit and the caller's telephone terminal in the hold state, and
When the transfer instruction from the telephone control device is received, the acceptance notification transmission means for forming the acceptance notice to the effect that the transfer instruction is accepted and transmitting the transfer instruction to the telephone control device is provided.
A telephone system characterized by being equipped with. The telephone control device of a telephone system configured by connecting a plurality of telephone terminals to a telephone control device.
The caller's telephone terminal, which is one of the plurality of telephone terminals and is notified of an incoming call addressed to its own device, serves as an incoming call notification means for notifying the user when an incoming call addressed to its own device occurs. , Identification of another telephone terminal that is one of the plurality of telephone terminals and should be a new answering destination on behalf of the own unit when notifying that there is an incoming call through the incoming call notification means. A reception means that accepts an input of proxy response information consisting of information and a proxy response special number without answering an incoming call, and a proxy response request including the proxy response information when the proxy response information is received through the reception means. The forming means to be formed, the transmitting means for transmitting the proxy response request formed by the forming means to the telephone control device, and the response information to the proxy response request are provided from the telephone control device, and the own machine and the said. When an extension is connected to another telephone terminal, the hold request means for forming a hold request for putting the call state on hold and transmitting the hold request to the telephone control device and the hold request means are used to hold the hold. After sending the request, the original hold processing means that keeps the call status between the own machine and the other telephone terminal in the hold state, and when the hold response is received from the telephone control device, the call is addressed to the own machine. It is provided with a transfer instruction means for forming a transfer instruction instructing the transfer of the incoming call to the other telephone terminal and transmitting the incoming call to the telephone control device.
When the other telephone terminal to be a new response destination receives the proxy response request addressed to the own machine, the notification means for notifying the user that the proxy response request has been provided to the own machine and the above-mentioned When the proxy response operation is notified through the notification means, the proxy response operation receiving means for accepting the response operation from the user and the proxy response operation receiving means for receiving the response operation are received in the request. A response transmission means that forms the response information indicating that the response information is to be accepted and transmits the response information to the telephone control device, and the hold response indicating that the request is accepted when the hold request from the telephone control device is received. After transmitting the hold response through the hold response transmission means formed and transmitted to the telephone control device and the hold response transmission means, the call state between the own unit and the caller's telephone terminal is kept in a hold state. When the transfer instruction from the telephone control device is received, the destination side holding processing means is formed, and an acceptance notification to the effect that the transfer instruction is accepted is formed and transmitted to the telephone control device. And,
When the proxy response request is received from the call source telephone terminal, the proxy response request is made to the other telephone terminal specified by the identification information of the proxy response information included in the proxy response request. Providing means and providing
When the response information is received from the other telephone terminal that has provided the proxy response request, the response information is provided to the incoming telephone terminal, and the incoming telephone terminal and the other telephone terminal are provided. An extension connection means that connects the extension to a telephone terminal to put it in a call state,
When the hold request is received from the call source telephone terminal, the hold request providing means for providing the hold request to the other telephone terminal and the hold request providing means.
When the hold response is received from the other telephone terminal that has provided the hold request, the hold response providing means that provides the hold response to the called source telephone terminal, and the hold response providing means.
A transfer instruction providing means for providing a transfer instruction for instructing the other telephone terminal to transfer an incoming call to the call source's telephone terminal when the transfer instruction is received from the call source's telephone terminal. When,
When the acceptance notification to the effect that the transfer instruction is accepted is received from the other telephone terminal, the transfer enables a call by connecting a call line between the caller's telephone terminal and the other telephone terminal. Line connection means and
An extension disconnecting means for disconnecting the extension connected between the called source telephone terminal and the other telephone terminal after connecting the call line through the transfer line connecting means.
A telephone control device characterized by being provided with. The telephone terminal of a telephone system configured by connecting a plurality of telephone terminals to a telephone control device.
When the telephone control device receives a proxy response request from the telephone terminal of the called party, the telephone control device responds to another telephone terminal specified by the identification information of the proxy response information included in the proxy response request. When the response information from the providing means for providing the request and the other telephone terminal that provided the proxy response request is received, the response information is provided to the telephone terminal of the called source, and the called source is provided. To the other telephone terminal when an extension connection means for connecting an extension between the telephone terminal and the other telephone terminal to put the call into a call state and a hold request from the caller's telephone terminal are received. When a hold response is received from the hold request providing means that provides the hold request and the other telephone terminal that has provided the hold request, the hold response is provided to the called party's telephone terminal. When the transfer instruction from the call source's telephone terminal is received, the hold response providing means for instructing the other telephone terminal to transfer the incoming call to the call source's telephone terminal is given. When the transfer instruction providing means to be provided and the acceptance notification to the effect that the transfer instruction is accepted are received from the other telephone terminal, a telephone line is connected between the calling terminal and the other telephone terminal. An extension that disconnects the extension line connected between the called source telephone terminal and the other telephone terminal after connecting the call line through the transfer line connecting means that enables a call. It is equipped with a cutting means and
It is a means that functions when the telephone terminal of the called source is notified of an incoming call addressed to its own device.
Incoming call notification means to notify the user when an incoming call to your own device occurs,
Identification of the other telephone terminal that is the other one of the plurality of telephone terminals and should be a new answering destination on behalf of the own machine when notifying that there is an incoming call through the incoming call notification means. A reception means that accepts the input of the proxy response information consisting of the information and the proxy response special number without answering the incoming call.
When the proxy response information is received through the reception means, the forming means for forming the proxy response request including the proxy response information and the forming means.
A transmission means for transmitting the proxy response request formed by the forming means to the telephone control device, and a transmission means.
The answer information for the proxy answer request is provided from the telephone control device, and when an extension is connected between the own unit and the other telephone terminal, the hold request for holding the call state is formed. Then, the hold request means to be transmitted to the telephone control device and
After transmitting the hold request through the hold request means, the original hold processing means for keeping the call state between the own unit and the other telephone terminal in the hold state, and the original hold processing means.
When a hold response is received from the telephone control device, the transfer instruction means for forming the transfer instruction instructing to transfer the incoming call addressed to the own unit to the other telephone terminal and transmitting the incoming call to the telephone control device and the transfer instruction means.
Equipped with
By receiving the proxy response request addressed to the own machine, it is a means that functions when the other telephone terminal should be a new response destination.
When the proxy response request addressed to the own machine is received, the notification means for notifying the user that the proxy response request has been provided to the own machine and the notification means.
When the proxy response request is notified through the notification means, the proxy response operation receiving means for receiving the response operation from the user and the proxy response operation receiving means.
A response transmission means that forms the response information indicating that the request is accepted when the response operation is received through the proxy response operation reception means, and transmits the response information to the telephone control device.
When the hold request from the telephone control device is received, the hold response transmission means that forms the hold response indicating that the request is accepted and transmits the hold response to the telephone control device, and the hold response transmission means.
After transmitting the hold response through the hold response transmission means, a destination hold processing means that keeps the call state between the own unit and the caller's telephone terminal in the hold state, and
When the transfer instruction from the telephone control device is received, the acceptance notification transmission means for forming the acceptance notice to the effect that the transfer instruction is accepted and transmitting the transfer instruction to the telephone control device is provided.
A telephone terminal characterized by being equipped with.

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