JP3475704B2 - Home telephone system with telephone exchange function - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a home telephone exchange device having a function of displaying a calling telephone number and a home telephone system having a telephone exchange function composed of a plurality of telephones.

[0002]

2. Description of the Related Art Recently, home telephone systems have been widely introduced in ordinary households. In this system, a residential telephone exchange apparatus installed indoors controls line connection switching to enable extension calls between telephones installed in each room and outside calls using each telephone. According to such a system, even a general house can be provided with the function of a private branch exchange (PBX) installed in a company or factory with a simple configuration.

On the other hand, recently, the invasion of privacy by a nuisance call has become a big social problem, and as one of the means for preventing this, introduction of a calling telephone number display service is prepared. According to this, since the telephone number and the like of the calling side are displayed before the response of the called side, it is possible to take measures corresponding to each partner. less than,
The basic operation of the calling telephone number display service will be described with reference to the sequence diagram of FIG.

The numbers (1) to (9) in the figure are numbers assigned to each operation, and the ID receiving terminal includes terminals such as telephones and facsimile machines that can use this service. Be done. The subscriber line exchange, when there is a call to the receiving terminal for which a service contract has been made in advance,
The polarities of the subscriber lines L1 and L2, which are the lines on the receiving terminal side, are inverted (1), and an ID receiving terminal activation signal is sent (2).
When the receiving terminal is ready to receive the sender information, it closes the DC circuit in the terminal (closes the DC loop) and sends a primary response signal (3). On the other hand, when the exchange side judges the primary response signal from the DC resistance value, it sends information such as the source telephone number, which is a modem signal, to the receiving terminal side (4), and then the receiving terminal side switches the DC circuit. After receiving the reception completion signal by opening (opening the DC loop) (5), the calling signal is transmitted (6).

When the ID receiving terminal receives a calling signal, the ID receiving terminal sounds a ringing tone to prompt an incoming call. However, since the calling party's telephone number etc. can be confirmed by receiving the calling party information in advance and displaying it on the display, etc. It is possible to take a response (for example, switch to an answering machine or leave a call) according to the above.
Here, when the handset is picked up and responds to the ringing signal, the DC circuit is closed again (DC loop closed), the secondary response signal is sent (7), and then the polarity is repolarized. So that you can talk (8),
(9).

In addition to the telephone number of the communication terminal of the caller, the modem signal containing the caller's telephone number also includes number information such as the dial-in number if a dial-in contract is made. If the caller's telephone number cannot be notified, the reason will be notified. By the way, the reason for this is that the operation before calling from a public telephone or entering a telephone number ("184"
Dialing, etc.) when making a non-notification designation, or making a call from outside the service area.

[0007]

However, in the above-mentioned home telephone system, a telephone in a house is called,
It has a redial function for the party who made an outside line call, but did not have a redial function (recall function) for the other party when receiving an outside line. Therefore,
In view of such circumstances, the present invention provides a home telephone system having a telephone exchange function, which has a redial function at the time of reception by storing a source telephone number to be received in a residential telephone exchange device. It is proposed for the purpose of doing.

[0008]

[0009]

[0010]

For this reason, it is described in claim 1.
In the home telephone system listed above, a home telephone switching device
Respect but calling from outside line received, from any telephone, a configuration in which the calling source number incoming to each phone can be freely selected redial, the general public line
Connect multiple phones to the connected home telephone exchange.
The above-mentioned residential telephone switching device switches the line.
Connect to make an extension call between the above phones, or
Outside line call from any of the above telephones via the public line
In home telephone system enabling said housing
The storage means of the home telephone exchange device is
It stores the received caller telephone number so that it can be overwritten.
When a call is made through the general public line, if the caller's telephone number sent from the exchange is received by the receiving means, and one of the telephones starts an outside line call,
The source telephone number received by the receiving means, while overwriting previously stored in the signal assigned to correspond to the storage means to the telephone, from one of the telephones, Li
The signal for dialing and the signal previously assigned to the telephone are
When it is sent out, it corresponds to the telephone and is described above.
Automatically call the source phone number stored in storage
A control means is provided .

According to a second aspect, in the first aspect, the residential telephone exchange device further connects one or a plurality of intercom subunits, and the residential telephone exchange device switches and connects lines to connect between telephones. Internal line call, external line call by telephone,
Enables intercom communication between the intercom slave and the telephone.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. Fig. 1 shows a telephone exchange device A for residential use.
2 is a block diagram showing an example of the internal configuration of FIG. 2, and FIG. 2 is a configuration diagram of a home telephone system having a telephone exchange function of the present invention.

As shown in FIG. 2, in the home telephone system of the present invention, a plurality of modular jacks M (# 1 to # 3) are attached to a residential telephone exchange A to which general public lines (outer lines L1 and L2) are connected. , Call lines L11, L12 and control line L
13 and L14 are connected via a 4-wire signal line, and telephones T (# 1 to # 3) are connected to each of them. Further, the telephone exchange device A has a call button 40
1 or a plurality of intercom subunits D (2 in the figure)
Stand, #A, #B) are connected via telephone lines L21, L22.

Each of the modular jacks M has a speaker 30 for outputting a ringing tone, an extension line indicator 31 for indicating that an extension call is in progress, and an outside line indicator 32 for indicating that an extension call is in progress. And an insertion hole 34 for inserting a modular plug 35 of the telephone T, and a normal telephone T for connecting a general public line can be used for connection to the modular jack M.

With such a configuration, the residential telephone exchange A has the above-mentioned communication lines L1, L2, L11, L12, L.
Through L21 and L22, the power required for a call is supplied by being superimposed on the call signal, and each call line L1, L2, L11, L1
2, L21, L22 are switched and connected to each other to make an extension call between the telephones T, an outside call by the telephone T, and an intercom subunit D
Enables the intercom communication between the telephone and the telephone T.

The home telephone exchange A has a function of an ID receiving terminal of the outgoing telephone number display service (see FIG. 5), stores the outgoing telephone number sent from the exchange, and immediately after the call. In addition, when a predetermined signal is sent from the telephone set T, the stored telephone number is automatically called (redial function).

Therefore, as shown in FIG. 1, the residential telephone exchange apparatus A includes a CPU 1 as a control means and a receiving means for receiving a source telephone number transmitted from the exchange through the outside lines L1 and L2. Source information detection circuit 21 constituting
And a telephone number storage unit 20 that stores the transmission source telephone number received by the transmission source information detection circuit 21 by configuring storage means with a RAM or the like. Further, it also includes a display unit 22 configured by a liquid crystal screen or the like and displaying received caller information (caller telephone number). The source information detection circuit 21
Detects polarity inversion, in order to execute the procedure shown in FIG.
It has the functions of detecting an ID receiving terminal activation signal and receiving a modem signal.

The telephone exchange A has an incoming detection circuit 2 for detecting a ringing signal, a line interface (I / F) 3 for transmitting to the outside lines L1 and L2,
DC closing circuit 4, hold melody sending circuit 5, DTMF tone sending circuit 6, dial pulse sending circuit 7, and ringer driving unit 8 and tone generating unit for performing transmission to telephone sets T through call lines L11 and L12. 9, DTMF tone detection circuit 10, telephone network switching circuit 11, line switching unit 1
2, an operation unit 13 including various operation switches, a display LED drive unit 14 for transmitting to each telephone T through control lines L13 and L14, and a notification melody generation unit 15
And an intercom interface (I / F) 16 and 17 for transmission with the intercom slave D, a communication path switching unit 18, and a communication amplifier 19.

In such a configuration, when a call is made through a general public line (outside lines L1, L2), first, the source information detection circuit 21 receives the source telephone number sent from the exchange, and the CPU 1 The received caller telephone number is displayed on the display unit 22 and is stored in the telephone number storage unit 20 so as to overwrite this telephone number.

Next, the incoming call detection circuit 2 operates so as to detect the ringing signal (16 Hz) (see FIG. 5 (6)), operates the DC closing circuit 4 to automatically receive an incoming call, and then the telephone T is driven by a ringer. Called by circuit 8. In this case, a pseudo ring tone sounds from the speaker 30 of the modular jack M to which each telephone T is connected. If any of the telephones T connected to the modular jack M responds to this ringing sound by picking up the handset or the like, the line switching unit 12 is switched from the a side to the b side, and the outside line by the responding telephone T is answered. Allows a call and displays LE
By the D drive unit 14 through the control lines L13 and L14,
The outside line indicator lamp 32 of the modular jack M is turned on.

After redialing the call, when redialing the call partner, first, the handset of one of the telephones T is picked up. Then, detect this,
The tone generator 9 sends out a dial tone (400 Hz) to which the telephone T side sets a predetermined D for redial.
When a TMF signal (for example, "**") is sent,
This is detected by the DTMF tone detection circuit 10 and C
The PU1 reads out the telephone number to be redialed from the telephone number storage unit 20, and according to the line type of the outside lines L1 and L2,
A selection signal (telephone number) is transmitted from the DTMF tone transmission circuit 6 or the dial pulse transmission circuit 7 through the line I / F 3 (automatic call). Then, a calling signal is sent to the other side, and if the other side responds to this, the line switching unit 1
Switch between 2 to enable outside line communication.

On the other hand, when a signal other than a predetermined redial signal is transmitted from the telephone set T side, it is a normal call, so the CPU 1 causes the DTMF tone transmission circuit 6 to follow the line types of the outside lines L1 and L2. Alternatively, the dial pulse sending circuit 7 sends a selection signal (telephone number),
Allows outside line calls. As described above, in the present invention, since the telephone number of a telephone call made through an outside line is stored every time a telephone call comes in, even for the first person to call, immediately after the call, It is possible to easily redial (redial) by sending a predetermined signal from any telephone T by a simple operation without checking the telephone number.

In addition, an extension call between the telephones T is performed by the telephone line L11, T2 of each telephone T by the operation in which the telephone T receives the incoming call to the outside lines L1 and L2 and the operation when the call originates. L12 is switched and connected, and when the call button 40 of the intercom slave D is operated, the intercom call is detected by a voltage drop or the like, and the notification melody generator 15 calls the telephone T side. If any of the telephones T responds, the call path switching unit 18 and the call network switching circuit 11 are switched and connected.

Next, the operation of the redial will be described with reference to the flow chart of FIG. (A) is an operation when a call is received from the outside lines L1 and L2,
When the caller's telephone number sent from the exchange is received, the caller's telephone number is stored in the telephone number storage unit 20 and an incoming call is made, and a telephone call is made by one of the telephones T (S1 to S1).
S8). Although the caller's phone number is stored immediately after the caller's phone number is received (S2),
The present invention is not limited to this, and may be stored only when the telephone T answers and actually calls.

After that, as shown in (b), when a predetermined tone signal is transmitted from any one of the telephone sets T, it is judged that the dialing is a redial, and it is heard immediately before. While the telephone number of the other party stored in the telephone number storage unit 20 is automatically called, if it is a signal different from the predetermined tone signal, it is judged to be a normal dial, and the call is made in accordance with the transmitted signal. (S10-S
14).

Next, the configuration of the telephone number storage section 20 will be described with reference to FIG. FIG. 4A shows the configuration when operating as described above. In this way, if the telephone exchange device A for home use is always memorized so that only the last telephone number of the other party is overwritten, a predetermined redial can be made from any telephone T. Can be sent to call this number.

(B) is a case where each telephone T (# 1 to # 3) is provided with a redial function, and in the telephone exchange apparatus A for home use, it is possible to overwrite the source telephone number for each telephone T. Remember. In this case, when a call is made through the general public line, the call originator telephone number is received by the call originator information detection circuit 21, and one of the telephone sets T responds,
When an outside line call is started, the received caller telephone number is stored in association with the telephone T that started the call. Therefore, the storage of the source telephone number (S2) in the flowchart of FIG. 3 is performed after the line switching connection (S6).

After that, when a predetermined signal (for example, “**”) is transmitted from any of the telephones T, the telephone number stored corresponding to the telephone T is automatically called. As a result, it becomes possible to redial the incoming call for each telephone T. (C) is a book
1 shows an embodiment of the invention. In other words, any telephone T (# 1 to # 3) can redial a telephone call to each telephone T, and the residential telephone exchange A is assigned a caller telephone number. The signals pre-assigned to each telephone T are stored so that they can be overwritten. Here, the signal "**" is sent to the telephone T (# 1).
1 ”, a signal“ ** 2 ”is assigned to the telephone T (# 2), and a signal“ ** 3 ”is assigned to the telephone T (# 3). These signals can be sent by operating the operation unit 13 in advance or by using the telephones T.
It can be set by sending a signal from.

In this case, when a call is made through a general public line, the caller's telephone number is received, and if any of the telephones T starts an outside line call, the caller's received telephone number is as in the case of (b). Similarly to the telephone T that started the call
It is stored in association with the signal previously assigned to. After that, when any of the signals pre-assigned to each of the telephones T is transmitted from any of the telephones T,
The telephone number stored corresponding to this signal is automatically called.

For example, in the illustrated example, the telephone T
If the signal "** 1" is sent from (# 1),
Call "045-135-2468" and signal "**
If "3" is sent out, "078-444-555"
5 ”is called. The home telephone system of the present invention has been described above. However, the system configuration is not limited to the configuration shown in FIG. Telephone T
It may be configured such that only an internal call and an external call can be made by using.

[0031]

[0032]

As can be understood from the above description, the present invention
Ming's home telephone system with telephone exchange function
Then, the following effects are achieved. In the first aspect , the residential telephone exchange device stores the source telephone number in the storage means for each signal pre-assigned to each telephone, and from one of the telephones, the signal pre-assigned to the telephone, Lida
When an ear signal is sent,
A call is automatically made to the source telephone number that is assigned and stored in the storage means . Therefore, for each incoming telephone call from an outside line, from any telephone,
The source of the outside line that the phone identified and that phone answered
You can redial your phone number .

According to a second aspect of the present invention, even if the intercom sub-unit is connected to the residential telephone exchange device, the extension call between the telephones, the intercom call between the intercom sub-unit and the telephone, the normal outside-line call by the telephone In addition, it is possible to add a redial function to the other party who receives an outside line.

[Brief description of drawings]

FIG. 1 is a block diagram showing an example of an internal configuration of a residential telephone exchange device which is a main part of a home telephone system of the present invention.

FIG. 2 is a schematic configuration diagram of a home telephone system having a telephone exchange function of the present invention.

FIG. 3 is a flowchart showing an example of a basic operation of the residential telephone exchange device.

FIG. 4 is a diagram showing a configuration example of a telephone number storage unit ,
(C) shows a configuration example of the storage unit in the present invention.
It

FIG. 5 is a sequence diagram showing a basic operation of a calling telephone number display service.

─────────────────────────────────────────────────── --- Continuation of the front page (56) References JP-A-2-39658 (JP, A) JP-A-4-354244 (JP, A) JP-A-3-74996 (JP, A) JP-A-62-1 247698 (JP, A) JP-A-3-140087 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) H04Q 3/58 107 H04M 1/57 H04M 3/42 H04M 9/00

Claims (2)

(57) [Claims] 1. A telephone exchange device for a house connected to a general public line
It is configured by connecting multiple phones to the
The telephone exchange device switches the lines and connects them to each other
Extension call or one of the above
In a home telephony system that enables an outside call through a public telephone line, the storage means of the residential telephone exchange device stores the caller telephone number received by the receiving means so that the telephone number can be overwritten.
Cage, when there is a call through the general public line, the source telephone number sent from the switch received by the receiving means, one of the phone by starting the external call,
Pre the source telephone number received by the receiving means, while overwriting previously stored in the signal assigned to correspond to the storage means to the <br/> telephone, from one of the telephones, the redial signal and the telephone
When order assigned signal and has been delivered are its
Dissemination to correspond to the phone are stored in the storage means
A home telephone system having a telephone exchange function, which is provided with control means for automatically calling an original telephone number. 2. The home telephone system according to claim 1 , wherein the residential telephone exchange apparatus further connects one or a plurality of intercom subunits, and the residential telephone exchange apparatus connects and switches lines. , Extension calls between the above phones, outside calls using the above phones,
A home telephone system having a telephone exchange function, which enables an intercom call between the above-mentioned intercom subunit and a telephone.