KR100454938B1 - Multiple destination service method of exchange - Google Patents

Abstract

The present invention provides a multi-subscriber incoming service method of an exchange having information of a predetermined subscriber or a predetermined group of subscribers designated by a CO line subscriber, and when the CO line incoming call of the exchange cannot be received, multiple subscribers including the called party information of the CO line incoming call are included. A first step of generating a request signal, a second step of registering the subscriber multi-call request signal to a service queue of the predetermined subscriber group corresponding to the called party information in response to the subscriber multi-call request signal; A third process of detecting all subscriber information registered in the predetermined subscriber group and periodically attempting to receive the CO line call to all subscribers of the predetermined subscriber group; and any one of all subscribers of the subscriber group. Detect a response to the fourth step of connecting the CO line call; It is characterized by including. Therefore, the present invention can reduce the call loss by increasing the likelihood of response of the call by attempting to receive the call of incoming call to all subscribers of the predetermined subscriber group designated by the subscriber in the situation that the subscriber is absent or cannot answer the call for the call of the exchange. There is.

Description

Multi-call service method of exchange

The present invention relates to an incoming service method of an exchange, and more particularly, to a method for converting an incoming call to a designated subscriber group and serving an incoming service.

1 is a diagram showing a block configuration of a general exchange system.

Referring to FIG. 1, the controller 111 controls call switching and controls overall operations of a key telephone system to provide various services to a user. The ROM 112 stores programs and initial service data of the control unit 111 for performing basic calls and various functions. The RAM 113 temporarily stores data generated during program execution under the control of the controller 111.

The switching circuit 114 switches various tones and voice data under the control of the controller 111. The subscriber circuit 115 supplies a call current to an extension subscriber (not shown) under the control of the control unit 111 and interfaces a signal between the extension subscriber and the switching circuit 114. Here, the extension refers to a line connecting the switching system and the subscriber telephone. The ring generator 116 generates a ring signal and supplies it to the subscriber line. The trunk line circuit 117 forms a trunk line call loop by seizing the trunk line under the control of the control unit 111, and interfaces a signal between the trunk line and the switching circuit 114. Here, the trunk line refers to a line connecting the trunk line circuit 119 and the national exchange.

The tone generator 118 generates various tone signals under the control of the controller 111 and outputs the generated tone signals to the switching circuit 114. A DTMF receiver 119 analyzes a DTMF signal input from the switching circuit 114, converts the DTMF signal into digital data, and outputs the digital data to the controller 111. Here, the DTMF signal input to the DTMF receiver 119 by the switching circuit 114 is a telephone number generated by the trunk line subscriber or a telephone number generated by an extension subscriber. The DTMF transmitter 120 converts the digital data output from the control unit 111 into a DTMF signal and outputs the DTMF signal to the switching circuit 114. Here, the DTMF signal output from the DTMF transmitter 120 becomes the telephone number of the trunk line subscriber generated when the station side calls the trunk line side.

In case of multiple subscribers in the switch having the configuration as described above, but the incoming call cannot reach the switchboard, the call is transferred to a specific subscriber designated by the subscriber or a call is made to a specific subscriber group. Switched to individual incoming service. At this time, when the incoming call is serviced by switching a call to the subscriber group, when multiple incoming calls are received, the call is switched to another subscriber or an error is processed. In addition, when a call is transferred to the specific subscriber to service an incoming call, if the subscriber is not in a state or cannot receive a call, the switched call cannot be answered, thereby reducing the possibility of response. In addition, even when the individual incoming service of the subscriber group, the same state as in the case of switching to the specific subscriber is caused.

Accordingly, an object of the present invention is to provide a method for grouping multiple subscribers by grouping multiple subscribers when receiving an individual call in an exchange.

Another object of the present invention is to provide a method for preventing a loss of a call by waiting for a plurality of trunk calls to the same subscriber multi-call group in an exchange.

It is still another object of the present invention to provide a method for improving call processing speed according to a response of another subscriber by receiving another subscriber's call of a queue to a subscriber group when a random subscriber response is received in a multiple call state when a plurality of trunk calls are in a waiting state. In providing.

In order to achieve the above object, the present invention provides a multi-subscriber incoming service method of an exchange having information of a predetermined subscriber or a predetermined group of subscribers designated by a CO line subscriber, when the incoming call of the exchange cannot be received. A first process of generating a subscriber multi-call request signal including a second, and registering the subscriber multi-call request signal to a service queue of the predetermined subscriber group corresponding to the called party information in response to the subscriber multi-call request signal; And a third step of detecting all subscriber information of the predetermined subscriber group previously registered in the service queue and periodically attempting to receive the trunk line call to all subscribers of the predetermined subscriber group, and all of the subscriber groups. If the subscriber detects a response from one of the subscribers, It characterized in that it comprises a fourth process of connecting an incoming call.

The configuration of the exchanger for carrying out the present invention is the same as that of FIG. 1, and the reference numerals are the same.

2 is a diagram illustrating a call control process configuration of a control unit 111 of a switch, wherein a trunk line process TP (Trunk Process) controlling a trunk line incoming call, a process ATCP (Attended Console Process) controlling a switchboard, and subscriber multi-calling It includes a subscriber group service process MRSP (Multiple Ring Service Process) that performs the service and a subscriber process UP (User Process) that performs the incoming call processing of the subscriber.

3A is a flowchart illustrating a process of processing a CO line process TP when a COP call occurs, FIG. 3B is a flowchart illustrating a call waiting process of a multi-call process MRSP, and FIG. 3C illustrates a multi-call process of a multi-call process MRSP. Fig. 3D is a flowchart showing an incoming process of the subscriber process ATCP.

Referring to FIG. 3A, the processing operation of the trunk line process TP requires that the trunk line process TP establishes a call to the switchboard control process ATCP in step 311 when detecting a trunk line incoming call, and the switchboard control process ATCP in step 313. After determining whether the call is established, if the call can be established, the process proceeds to step 327, and the call is terminated in the general call mode. In this case, the trunk line incoming call is applied to the switchboard and processed normally.

However, when the trunk line incoming call cannot be handled in the switchboard control process ATCP, the trunk line process TP detects the incoming state of the switchboard in step 313, requests for multiple subscribers in step 315, and multiple subscribers in step 317. If it detects a failure of the request, it processes the error tone in step 329 and terminates the incoming call service of the trunk line incoming call.

However, if the subscriber multi-call service is available in step 317, it detects it in step 317, and controls the tone generator 318 in step 319 to supply a confirmation tone indicating that the multi-call service is possible. After waiting for the subscriber's incoming call to the CO line, if the subscriber responds, it detects it in step 321, requests for canceling the subscriber's multiplexing in step 323, and controls the switching circuit 114 in step 325 to control the switching circuit 114. The circuit 115 is connected to the incoming call path to handle the call.

Referring to Figure 3b looks at the process of queuing (queue) of the multi-call process MRSP. If the subscriber multi-call request signal including the called party information output in step 315 of FIG. 3A is output, the multi-call process MRSP receives it in step 341, and queues the subscriber multi-call request signal in step 343. Register at Thereafter, the multi-call process MRSP checks the success or failure of the subscriber multi-call request in step 345, and if successful, notifies the CO line process TP of success in step 347 and transfers the control right to the CO line process. Then the CO line process TP detects success in step 317. In addition, if it detects that the failure in step 345, in step 349 notifies the failure to the trunk line process TP.

Referring to Figure 3c looks at the multi-call processing of the multi-call process MRSP. In the multi-call service, the multi-call process MRSP retrieves the contents of the queue in step 351 to retrieve the success or failure of the multi-call service, and if successful, the subscriber process UP is driven in step 355.

Referring to Figure 3d looks at the incoming call processing of the subscriber process. If the subscriber process UP is driven in step 355 of FIG. 3C, the subscriber process UP checks in step 361 whether a subscriber call is possible. In this case, if the incoming call is possible, the subscriber process UP detects this in step 363 and processes the incoming call in step 365. After the subscriber response is detected in step 363, and the subscriber response to the CO line process TP in step 369, the call connection and call processing is performed in step 371.

Referring to the subscriber multi-call operation according to the embodiment of the present invention as shown in Figs. 3a to 3d, first, when the CO line process TP controlling the CO line incoming call attempts to establish a call with the switch, If the process ATCP notifies the call establishment in response to the switchboard failure, the CO line process TP requests establishment of the call to the designated subscriber group service process MRSP. Subsequently, the subscriber group service process MRSP receives the subscriber multi-call request signal including the called party information from the trunk line processor TP and requests the subscriber process UP to perform the multi-call processing for subscribers of the predetermined subscriber group designated by the subscriber. The subscriber process UP then performs incoming or outgoing processing according to the subscriber's ability to receive or not. At this time, the subscriber group service process MRSP periodically requests an incoming call to the subscriber process UP to the subscriber who has not been received.

Then, the subscriber group service processor MRSP requested to establish the call registers a subscriber multi-call request signal including the called party information received from the CO line process TP into the service queue of a predetermined subscriber group designated by the subscriber, and transfers control to the CO line process TP. . The CO line process TP then performs tone processing for the CO line caller.

The subscriber group service process MRSP detects all subscriber information of the predetermined subscriber group pre-registered in the service queue, so as to periodically try to receive the COP call to all the subscribers of the predetermined subscriber group, i.e. Require subscriber processor UP.

Thereafter, when the subscriber processor UP in the incoming state detects a response from any one of the subscribers attempted to receive the notification, the trunk line processor TP notifies the subscriber response. Accordingly, the trunk line processor TP stops the tone processing. Connect the furnace. In addition, the trunk line processor TP requests the release of the multiplexing to the subscriber processor UP.

In this case, when the same subscriber group service is requested by a trunk line process TP other than the trunk line process TP which has driven the multi-call process, the subscriber group service processor MRSP registers the subscriber multi-call request signal including the called party information in the service queue. When the first multiplexing service registered in the service queue is released by the response of a subscriber, the first multicasting service is released. If the first multiplexing service is released, a new multicall is started.

As described above, the multiple incoming service method according to the embodiment of the present invention can perform the subscriber multiple incoming function according to the multiple incoming service, and all subscribers designated by the subscriber in a situation in which the subscriber is absent or cannot receive a call. In addition, the call loss can be increased by increasing the likelihood of a call being answered. In addition, by configuring a separate subscriber multi-recipient group and a separate subscriber multi-recipient group, the incoming service when the exchange can not be received, the subscribers of the multi-recipient subscriber group can belong to the other general subscriber group, the service is also available in the general subscriber group There is this.

1 shows a block configuration of an exchange.

2 is a diagram illustrating a structure of a service process processed in a control unit of an exchange.

3A-3D are flow diagrams illustrating multi-call service operations in accordance with an embodiment of the invention.

Claims (1)

A multi-subscriber incoming service method of an exchange having information of a predetermined subscriber or a predetermined subscriber group designated by a CO subscriber, A first process of generating a subscriber multi-call request signal including the called party information of the trunk line call when the trunk line call of the exchange cannot be received; Registering the subscriber multi-call request signal to a service queue of the predetermined subscriber group corresponding to the called party information in response to the subscriber multi-call request signal; A third step of detecting all subscriber information of the predetermined subscriber group previously registered in the service queue, and periodically attempting to receive the trunk line call to all subscribers of the predetermined subscriber group; And a fourth process of connecting the trunk line call if it detects a response of any one of all subscribers of the subscriber group.

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