KR100271518B1 - Remote call forwarding service method using voice messaging system - Google Patents

Abstract

The remote incoming call switching service using the voice messaging system according to the present invention interlocks a voice messaging system capable of performing call processing to the called party's electronic exchange with a relay line, and transfers the voice messaging system's call to the incoming call switching function performed by the conventional electronic exchange. Adds a function to process outgoing calls, but since the voice messaging system has a database of called numbers, the service subscriber can remotely access the voice messaging system and change the called number to receive incoming calls. The present invention relates to a remote call forwarding service technology using a network, and solves the impossibility of changing a remote destination number, which is a disadvantage of the conventional forwarding service, at the network level, thereby providing mobility to the forwarding service without additional subscribers. If necessary, parallel call forwarding service It can also be used to improve the quality and effectiveness of services, and also because the existing network operators to provide services that are available only on an application to change the voice messaging systems in operation, doubling the efficiency of the equipment used in the given service functions.

Description

Remote call switching service method using voice messaging system

The remote incoming call switching service using the voice messaging system according to the present invention interlocks a voice messaging system capable of performing call processing to the called party's electronic exchange with a relay line, and transfers the voice messaging system's call to the incoming call switching function performed by the conventional electronic exchange. Adds a function to process an outgoing call, but since the voice messaging system has a database of called numbers, the service subscriber can remotely access the voice messaging system to randomly change the called number to receive incoming calls. This is a technology applied to the field of computer telephony integration (CTI) of information and communication technology.

In general, the Call Forwarding service among the special services of the electronic exchange is the most frequently used service along with the call waiting service among the special services. In other words, it is impossible to change the called number remotely from outside.

This does not allow the telephone user to directly access the electronic exchange due to security reasons, and the method of changing the called number from time to time when the operator of the electronic exchange connects to the electronic exchange to change the called number upon the subscriber's request. This is because, when it occurs, it is not allowed to change the called number, which has a strong real-time character, due to the difficulty of setting the priority in the internal work order of the exchange.

Due to the mobility limitation of the call forwarding service, the conventional call forwarding service does not become a valid service for mobile telephone users.

As a result, some of the subscribers of the call forwarding service purchase expensive mobile phones and set the call forwarding number as their own mobile phone number, thereby solving the mobility limitation of the call forwarding service. However, this approach puts the burden on the subscribers to purchase a mobile phone and to pay for additional expensive communication costs.

Therefore, the provision of a new supplementary service that provides the mobility of the call forwarding service without additional use of the mobile phone is required from subscribers of the call forwarding service of the telephone network.

The present invention, in view of the above-mentioned problems and requirements as described above, by providing a method for providing mobility to the call forwarding service without the use of additional subscribers of the service subscriber, it is an object to be able to change the incoming call number from a remote location This service can be configured as an application program in the operating environment of the voice messaging system capable of transmitting and receiving a number with an existing electronic exchange and having a call connection function.

1 is a block diagram showing a connection structure between an electronic exchanger and a voice messaging system to which the present invention is applied.

Figure 2 is a flow chart showing the overall processing of the remote call signal switching service method according to the present invention.

Figure 3 is a flow chart illustrating a detailed process of processing a remote messaging signal conversion service according to the present invention in a voice messaging system interworking with an electronic exchange.

<Description of Symbols for Major Parts of Drawings>

10: voice messaging system 11: central control unit

12 signal processing unit 13 relay line circuit unit

14: database 20: electronic exchanger

21: relay circuit portion 22: subscriber circuit portion

30: T1 or E1 relay line

In order to achieve the above object, any caller subscribes to the call forwarding service; In the call forwarding service method comprising the step of performing a call when any caller to the subscriber subscribed to the service,

Using voice messaging means together with an electronic exchange to provide a call forwarding service to remotely change a called number when the incoming call is switched, and setting up a channel to remotely change the called number in the voice messaging means;

Changing the called number remotely using the set channel;

Through the process of performing a remote call signal conversion using the remote changed call signal,

Characterized in that the called number can be changed from a remote location.

The above objects, features, and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First of all, for the operation of the present invention for providing the above service, the electronic exchange and voice messaging system should be interconnected to the relay line, and the inner channel of the relay line should be logically set for three different purposes. Arbitrary outgoing call coming to service subscriber is set to use for terminating electronic exchange to voice messaging system, and second channel group is for service subscriber to remotely access voice messaging system to randomly change called number. The third channel group is set by the voice messaging system for the final incoming call from the incoming exchange to the incoming or changed called number.

In addition, different access numbers are assigned to the first and second channel groups, and these access numbers can be used only by subscribers subscribed to the call forwarding service for the security of the subscribers. As a way of doing this, if a number other than the registered number of the subscriber is received through the first channel group, the voice messaging system does not search the database and does not receive the first call if it does not match the registered number. For a call connected to the voice messaging system through the channel group, a step such as requesting a predetermined password by the service subscriber through the announcement can be used in the service scenario.

If any telephone user requests the existing call forwarding service in the state of allocating the channel as described above, the operator of the electronic exchange authorizes the incoming call forwarding service to the telephone number of the service applicant in the same manner as before through the operator terminal. do.

At the same time, the operator of the electronic exchange registers the subscriber in the voice messaging system's database so that the call forwarding can be performed using the voice messaging system.

The service subscriber then enters the key to activate the service using the registered telephone and the access number for the first channel group connection provided by the service provider, to direct the incoming call to the voice messaging system.

The service subscriber then calls the access number for the second channel group access, accesses the voice messaging system, and enters the call forwarding number, which will ultimately receive the incoming call.

According to the above procedure, any outgoing call calling the incoming service subscriber is first received by the voice messaging system, and the second incoming call is transferred to the call forwarding number pre-entered by the voice messaging system, so that the incoming call is connected to the subscriber. If necessary, the service subscriber can remotely access the voice messaging system and change the called number.

In addition, the service subscriber can deactivate the call forwarding service by using the registered phone in the same manner as before.

A schematic structure of a voice messaging system to which the method of the present invention is applied as described above, and a structure of an electronic communicator and subscribers interworking with the voice messaging system will be described with reference to FIG. 1.

As shown in the figure, the overall system for applying the remote call signal switching service method of the present invention is interlocked with an electronic switch 20 equipped with a relay line circuit 21 and a T1 or E1 relay line 30 and a standard R2. It consists of a voice messaging system 10 equipped with a number transmission and reception function and a call connection function using a signaling method.

At this time, the electronic switch 20 includes a subscriber circuit section 22 connected to each subscriber (sender, called party);

The relay line circuit unit 21 receives a signal input through a relay line connected to the voice messaging system 10.

The voice messaging system 10 selects DTMF or R2 signal data from the data input through the relay line circuit 13 to generate a corresponding event, and generates DTMF or R2 signal data for call processing, thereby relaying the relay line circuit. A signal processor 12 for outputting to 13 and processing voice announcements according to the use of various announcements and corresponding services, and voice compression algorithms;

Receiving a clock from the electronic exchange 20 so as to transmit and receive data in the unit of T1 / E1 (30) between the electronic exchange 20 and the voice messaging system 10 to establish a synchronization, from the electronic exchange 20 The relay line of the electronic switch 20 receives various signals DTMF, R2 and voice which are input and transmits them to the signal processor 12 through the system bus, or signals such as R2 and DTMF input from the signal processor 12. A relay line circuit unit 13 performing a function of transmitting to the circuit unit 21;

A database 14 for storing the telephone number and the forwarding number of the service subscriber and updating the corresponding data when the forwarding number is changed by the service subscriber in the service scenario by the application program;

Operating the operating system (O / S) and utilities, and comprises a central control unit 11 for controlling the signal processing unit 12, the relay line circuit unit 13 and the database (14).

The relay line circuit 21 of the electronic exchanger and the relay line circuit 1 (3) of the voice messaging system are composed of T1 or E1 relay lines, and as mentioned above, three internal channel groups are logically formed. Separated by.

The first channel group is configured to convert an outgoing call to the called party to the voice messaging system 10. The outgoing channel on the electronic exchange 20 side, and the voice messaging system 10 side. It is set up as an incoming channel type.

The second channel group is configured for the subscriber to access the voice messaging system 10 and input or change the called number. The outgoing channel at the electronic exchange 20 side, and the voice messaging system 10 side. Is set to the incoming channel type.

In addition, the third channel group is configured for converting the outgoing signal converted from the electronic switching unit 20 into the incoming call number by the voice messaging system 10, and the outgoing channel on the voice messaging system 10 side. And, it is set in the form of an incoming channel on the side of the electronic exchange 20.

The channel number to be set in this channel configuration method can be changed flexibly in consideration of traffic.

Figure 2 is a flow chart illustrating the overall processing of the remote call signal switching service method using the system implemented as described above.

When the service request is received by any telephone user, the operator of the electronic exchange authorizes the call forwarding service to the corresponding phone number using the operating terminal as in the past (S1). Way.

When the incoming call forwarding service is authorized as described above, the operator of the electronic exchange registers the telephone number corresponding to the subscriber again in the database 14 of the voice messaging system 10 (S2).

Subsequently, the service subscriber uses a registered phone to configure a key line for activating a service and a relay line channel group configured in advance with an access number, which is a primary called number, which is separately assigned to make a first call to the voice messaging system 10. Enter the first channel group number (S3).

Subsequently, the service subscriber accesses the voice messaging system 10 by calling the access number, and then inputs the number to be forwarded to the final call (S4).

When any caller calls the incoming service subscriber in the above situation (S5), the destination exchange switches the caller's call to the voice messaging system 10 firstly, and at this time, the called number is transferred using R2 signaling. The voice messaging system 10 is sent (S6).

The voice messaging system 10 searches the database 14 with the received incoming number and detects the final forwarding number corresponding to the incoming call number. Then, the voice messaging system 10 transfers the caller's call to the second incoming call (S7).

And, the incoming service subscriber can change the destination number already registered by accessing the voice messaging system 10 remotely by using any telephone terminal at any place (S8). In the same way, the registered telephone can be used to deactivate the service (S9).

This service is composed of a short-term application program change in the voice messaging system equipped with call processing functions such as 141 contact room system and telephone mail system, which is currently provided to telephone users as a commercial service. It has the economic advantage that the service development is possible, and it has the effect of doubling the efficiency of equipment use in terms of utilization of existing equipment.

3 is a flowchart showing in detail a process of processing a service method of the present invention by a voice messaging system interworking with an electronic exchange, wherein a telephone user provides a service to a service provider in order to receive a remote call switching service according to the present invention. Upon request, the exchange operator authorizes the call forwarding service in the same manner as the conventional telephone number.

The subscriber's telephone number is then registered in the database 14 of the voice messaging system 10.

In addition, the service subscriber sets the call forwarding number as the first channel group number of the relay line connected to the voice messaging system in the process of activating the service using the registered phone after receiving the service registration notification.

In addition, when the service subscriber accesses the voice messaging system 10 and inputs the final called number, any outgoing call to call the service subscriber is first processed by the destination exchange to the voice messaging system 10 (N1). .

At this time, the voice messaging system 10 detects the called forwarding number set by searching the database using the called number received from the electronic switch 20 as a key (N2).

When the detection is completed, the detected number is called to connect the call (N3) when the called party answers.

As a result of the call, if the service subscriber is unable to make a call due to a busy call or a congestion, the caller terminates after informing the caller of the telephone number input by the called party through the announcement (N4).

As described above, the present invention allows the incoming number to be modified even in a remote place by one step further from the existing incoming call forwarding service. The service subscription method and the service activation method are the same as before, but the subscribers subscribed in this state All you have to do is apply the method to change the called number by linking the information with the voice messaging system.

For reference, the called number stored in the database 14 may be input as a plurality of numbers, such as primary and secondary, as occasion demands, so that the secondary incoming call may be performed when the primary incoming call is not made.

As described in detail above, the present invention solves the possibility of changing the remote destination number, which is a disadvantage of the conventional call forwarding service, at the network level, thereby providing mobility to the call forwarding service without additional use of the subscriber by the service subscriber. Since the transfer service can be used in parallel, the quality of service can be improved.

In addition, it is possible to provide a service only by changing the application program on the voice messaging system in which the network operator is operating, thereby increasing the efficiency of equipment use when providing a service function.

In addition, preferred embodiments of the present invention are disclosed for the purpose of illustration, those skilled in the art will be able to various modifications, changes, additions, etc. within the spirit and scope of the present invention, such modifications and modifications belong to the following claims You will have to look.

Claims (10)

Joining a caller by an arbitrary caller; In the call forwarding service method comprising the step of performing a call when any caller to the subscriber subscribed to the service, Using voice messaging means together with an electronic exchange to provide a call forwarding service to remotely change a called number when the incoming call is switched, and setting up a channel to remotely change the called number in the voice messaging means; Changing the called number remotely using the set channel; Through the process of performing a remote call signal conversion using the remote changed call signal, Remote call forwarding service method characterized in that the incoming number can be changed from a remote location. The method of claim 1, The setting channel may include: a first channel for setting any incoming call to the subscriber to be serviced by the terminating electronic switch for voice messaging; A second channel for setting the service subscriber to remotely access the voice messaging means and to change the called number arbitrarily; And a third channel for setting a voice message means for connecting an incoming call received from the incoming electronic switch to a called number stored in a database. The method of claim 2, Assigning a first access number for a first incoming call when a third party calls a subscriber subscribed to the remote call forwarding service when the first channel is set up; And the voice messaging system is interworked by the call forwarding by the first access number. The method of claim 3, The first access number is a remote call forwarding service method, characterized in that for use only subscribers subscribed to the call forwarding service for the security of the subscriber. The method of claim 2, And a second access number for granting access to a voice messaging means when a subscriber subscribed to a call forwarding service is required to change his / her called number when setting the second channel. The method of claim 5, The second access number is a remote call forwarding service method, characterized in that for use only subscribers subscribed to the call forwarding service for the security of the subscriber. The method of claim 1, In the process of remotely changing the called number, any caller applies for a call forwarding service and, upon signing up, activates the service and simultaneously sends the first call forwarding number to the first channel of the relay line connected to the voice messaging means. Storing a first access number to be connected to; Subsequently, the service subscriber connects to the voice messaging means using the second access number for calling the voice messaging means, and then changes the existing called number. The method of claim 1, The remote call switching may include: when a third party calls a subscriber, the electronic switching unit performs a first incoming call to voice messaging means through a number entered as a switching number; When the called number is input through the first incoming call, voice messaging means for searching a database using the called number as a key to detect a set forwarding number; When the detection is completed, calling the detected number to perform the second incoming call, and if the called party responds, the remote call signal switching service method characterized in that the connection. The method of claim 8, If the called party does not respond during the second incoming call, the call forwarding service method is characterized in that the caller terminates after informing the caller of the telephone number input by the called party through the announcement. The method of claim 1, And the called number stored in the database in the voice messaging means can store two or more incoming calls.