KR100256886B1 - Apparatus and method for controlling call commect of full electronic telephone exchange - Google Patents

Abstract

PURPOSE: An apparatus for and a method of controlling a call connection of a passive subscriber in a full-electronic exchange are provided to set a call with respect to a passive subscriber's terminal by mediating a guide desk. CONSTITUTION: A number translating part(20) responds to a call setting request of a caller's subscriber terminal(10) by setting a group of number of a passive subscriber terminal(24) as a called subscriber terminal. A terminating subscriber part(22) performs a call connection with respect to the passive subscriber terminal(24) on the basis of the results of number-translation by storing at least more than one line information about the passive subscriber terminal(24) in the cue. An originating subscriber part(18) requests a number-translation in response to the call setting request with respect to the passive subscriber terminal(24) mediating a guide desk(12), delivers the call setting result of the terminating subscriber part(22) to the guide desk(12) and sets a call path between the guide desk(12) and the passive subscriber terminal(24).

Description

Passive subscriber call connection controller in electronic switching system and its method {APPARATUS AND METHOD FOR CONTROLLING CALL COMMECT OF FULL ELECTRONIC TELEPHONE EXCHANGE}

The present invention relates to a passive subscriber call connection control device and a method thereof in an electronic switchgear, and more particularly, when a call establishment request from the calling subscriber terminal accommodated in the electronic switchgear to a passive subscriber station occurs, the call is set up. The present invention relates to a passive subscriber call connection control device and an apparatus in an electronic switching system in which an incoming call processing to a passive subscriber terminal can be carried out in response to a request.

As is well known, an electronic switching system that provides optimized call service in response to call establishment and call request generated from subscriber terminal with multiple subscriber terminals connected, responds to call establishment request generated between subscriber terminals of its own country. Therefore, automatic call setup can be made or a call setup request can be responded to a subscriber station accommodated in a foreign exchange having a similar exchange system.

In consideration of the fact that such call setting request cannot be accepted when a call establishment request is generated for a subscriber station accommodated in a foreign exchange having a different exchange system, the call subscriber is currently operated by an operator's operation. It is a situation that a guide is additionally designed to enable call setup between a terminal and a called party's subscriber terminal accommodated in another switching station of a different exchange type.

According to such a guide, if the call setup request is added to at least one of the all-electronic switching centers and called to the called party's terminal accommodated in another exchange of a different exchange type, the operator of the guide is called. By artificially establishing a call path for the calling party's subscriber terminal, it is possible to support a call with the calling party's terminal.

By the way, when the information desk is added to the electronic switchgear, the subscriber station accommodated in the foreign exchange of a different exchange system can be set as a call in response to a call setup request from the calling subscriber terminal. Assuming a case where a passive subscriber station capable of only passive call establishment is accepted at the exchange, there is a demand that the switchboard must be able to respond to the occurrence of a call establishment request for the passive subscriber station.

The present invention has been made in view of the above circumstances, and has been made so that call setting for a passive subscriber station can be performed through a guide when requesting a call setting for a passive subscriber station accommodated in an electronic switchboard having a guide. It is an object of the present invention to provide a passive subscriber call connection control apparatus and method in an electronic exchange.

In order to achieve the above object, according to a preferred embodiment of the present invention, at least one guide is accommodated through the Q.921 link unit and the Q.931 protocol unit, and the call set-up request of the calling party's terminal is received through the guide. In an electronic switch system which establishes a call path with a called party's terminal in response, a number group of a passive subscriber station serving as the called party's terminal is set so that number translation is performed in response to a call setup request of the calling party's terminal. A number translator for executing and at least one or more line information of the passive subscriber station as the called party's terminal is stored in a queue and executing a call connection to the passive subscriber station based on the number translation result; And in response to the call setup request for the passive subscriber station mediating the guide, execute the request for number translation. Passive subscriber call connection control device in an electronic switchgear having a calling party unit configured to transmit a call establishment result for a passive subscriber station of a new subscriber unit to the guide station so that a call path between the guide station and the passive subscriber station is established. Is provided.

According to another preferred embodiment of the present invention, at least one guide station is accommodated through the Q.921 link unit and the Q.931 protocol unit, and the called party subscriber terminal responds to the call setup request of the calling party terminal through the guide station. In the all-electronic switchgear for establishing a call route, a process of performing a number translation by a number translation unit in response to a call setting request of the calling party's terminal, and as a result of the number translation, the called party's terminal is manually operated. If it is determined to be a subscriber terminal, performing a call processing to a passive subscriber terminal by a called party, and transferring a result of the call processing to the guide party to establish a call path between the guide and the passive subscriber terminal. Provided is a passive subscriber call connection control method in an all-electronic exchange.

Preferably, the execution process of the number translation is the step of generating a call setup request to the calling party to the subscriber through the guide, the calling party connected the call to the calling party subscriber terminal and the call to the guide; Notifying the setting confirmation, and performing a number translation of the called party's terminal to determine whether the called party's terminal is a passive subscriber's terminal based on a result of searching in the number group of the passive subscriber's terminal, In the case where the called party's subscriber station is abnormal from the passive subscriber station as a result of the number translation, a step of notifying the guide party of the abnormal state is performed so that the announcement broadcast to the calling party's subscriber station is executed. .

The call processing may include determining whether the called subscriber unit exceeds a range of a passive subscriber group when a call to the passive subscriber station is requested for the called subscriber unit, and as a result of the determination, exceeding the passive subscriber group. If not informed to the guide side to execute the guide broadcast to the calling party subscriber terminal, if the result of the determination does not exceed the passive subscriber group, detecting the line number of the passive subscriber station to investigate the line status Connecting the ring signal to a passive subscriber station if the incoming subscriber unit requests to connect the telephone line to the number translation unit and receives the telephone line connection result from the number translation unit if the line state investigation result is normal; The called party from the called party to the guide side through the calling party Notifying the response of the own terminal and the sender receives the confirmation message of the response from the guide, and if the abnormal state of the line state checks the existence of the subsequent line, if the existence of the subsequent line Investigating the status of a subsequent line, and in the absence of the subsequent line, the step of notifying the line abnormality through the caller.

According to the passive subscriber call connection control device and the method in the electronic switch according to the present invention of the above configuration, when a call connection request for the passive subscriber terminal is generated from the calling party subscriber terminal through the guide, It is judged that it is a passive subscriber station by executing number translation of the call setup request, and based on the result of the determination, the incoming subscriber part examines the accessible line, and if it is normal, requests the number translation part to set the call path. As the call path between the passive subscriber station and the reception desk is established by setting, the call connection to the passive subscriber station accommodated in the electronic switching center is executed.

1 is a schematic block diagram of an all-electronic switchboard having a guide including a subscriber subscriber call connection control device according to the present invention;

2 is a flowchart for explaining a passive subscriber call connection control method in an electronic switch according to the present invention.

* Description of the symbols for the main parts of the drawings *

10: calling party terminal, 12: information desk,

14: Q.921 link portion, 16: Q.931 protocol portion,

18: calling party, 20: number translation,

22: incoming subscriber portion, 24: passive subscriber terminal.

Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail.

1 is a schematic block diagram of an electronic switchboard with a guide for executing call connection control for a passive subscriber according to the present invention. In the figure, reference numeral 10 denotes a calling party subscriber terminal which can be connected via a corresponding telephone exchanger or relay call processing unit (not shown), and 12 denotes a calling party subscriber terminal 10 connected to the corresponding telephone exchanger. Representative guides for transmitting call setup requests from the call to the switchboard side and supporting the establishment of a call path for the called party's terminal 10 based on the call setup result at the switchboard side.

14 connects the call setup message generated by the subscriber terminal 10 to the corresponding electronic switchboard and applied to the corresponding electronic switchboard. The message regarding the call setup response from the electronic switchboard is received. Q.921 link portion connecting to guide 12 side, 16 indicates call setup request from guide 12 exchanged through Q.921 link 14 and call setup response from electronic switchboard side. Represents the Q.931 protocol part that implements the protocol of the ITU-T Recommendation for processing messages relating to.

18 is a calling party that requests the number translation in response to a call setup request generated through the guide 12 or transmits the response status of the called party's subscriber terminal as a result of the number translation to the guide 12. 20 indicates a number translation unit for performing the number translation request of the calling party 18 and performing a call request for the called subscriber terminal based on the number translation result. The line number of at least one passive subscriber station (reference numeral '24 in FIG. 1) group accommodated in the corresponding electronic switching center is registered.

Further, 22 denotes a called party part which executes a call to the called party's passive subscriber station 24 of the call setup target requested from the guide 12 and delivers the call execution result to the calling party part 18 side. As shown, the incoming subscriber section 22 sequentially sets line queue information of at least one passive subscriber station 24 accommodated in the corresponding electronic switchboard, and outputs the first subscriber station (FIFO) to output the passive subscriber station (FIFO). Call processing for 24) is executed.

Subsequently, a manual subscriber call connection control method executed in the all-electronic switchboard having the above-described configuration will be described in detail with reference to the flowchart shown in FIG.

First, when the calling party terminal 10 calls the guide 12 in step 30 and becomes in a busy state, a call setup request is generated for the called party terminal, for example, the passive subscriber station 24. The operator of the guide 12 sets up a call to the called party's subscriber terminal 18 to the calling party's part 18 with the support of the Q.921 link part 14 and the Q.931 protocol part 16 in step 32. Therefore, the calling party unit 18 performs a hook-flash notification to the calling party subscriber terminal 10 in step 34 to connect a pending sound and to confirm the call setup to the guide 12 side. You will be notified of the message.

Subsequently, the number translation unit 20 requests the number translation unit 20 to translate the number of the called party subscriber terminal in step 36, and the number translation unit 20 requests the number of the called party subscriber terminal. The number group of the passive subscriber station is searched based on the translation result to determine whether the called party subscriber station is the passive subscriber station in step 40. If the called terminal is not the passive subscriber station 24 as a result of the determination, the mobile terminal searches for the number group of the automatic subscriber station and performs the call connection procedure for the normal automatic subscriber station, if it is determined to be the automatic subscriber station. If the search is not performed even in the number group of the automatic subscriber station ('NO' in step 40), the process proceeds to step 42 and the number translation unit 20 passes through the caller unit 18 through the calling party unit 18. ), The called party's subscriber station is notified. Therefore, the guide 12 is to guide the state to the calling party terminal 10, or output a busy tone (Busy tone), wherein the called party subscriber terminal is not registered in the announcement broadcast It is preferable to set the message to indicate the status.

On the other hand, if it is determined in the step 40 that the called party terminal is a passive subscriber station, the number translation unit 20 requests the called party 22 to call the passive subscriber station 24. In step 46, the called party 22 receiving the call request receives the call request for the passive subscriber station 24 within the range of a predetermined group of passive subscribers (i.e., simultaneously connected subscribers). Line range). As a result of the determination, if the called party part 22 exceeds the range of the group for the passive subscriber station 24, the process proceeds to step 48 and notifies the calling party part 18 of the abnormal state. The originating subscriber unit 18 notifies the guide 12 of the abnormal state to execute the guide broadcast to the calling party terminal 10 (step 50), and then terminates the current call connection process.

On the other hand, if the determination result in step 46 does not exceed the range of the passive subscriber group, the incoming subscriber unit 22 detects the line number of the passive subscriber terminal group stored in the internal queue in step 52 and checks the line state. If the result of the investigation is that the line is abnormal (i.e., 'NO' in step 54), the destination subscriber unit 22 detects the entire line number stored in the queue by FIFO method to determine whether a subsequent line exists. do. As a result of the determination, if there is a subsequent line (i.e., 'YES' in step 56), the process returns to the above-described step 52 to repeat the subsequent processing.

On the other hand, if the subsequent line does not exist (i.e., 'NO' in step 56) as a result of the determination in step 56, the called party 22 will notify the calling party 18 about the line abnormality. The caller unit 18 notifies the guide 12 of the line abnormality in step 60 so that the current process is terminated, where the guide 12 is the calling party subscriber in case of line abnormality. Recall the terminal 10 to check whether or not to register the queue information related to the waiting call processing until the line is restored to normal or the reserved call when restoring to the normal line, and then to such waiting call processing or reserved call processing. The introduction of a procedure for making a line connection to the passive subscriber station 24 is also preferred.

On the other hand, if it is determined in step 54 that the line for the passive subscriber station 24 is normal (i.e., 'YES' in step 54), the called subscriber unit 22 is the number translation unit in step 62. The number translation unit 20 receives the call connection request at 20 and performs the call connection procedure for the passive subscriber station 24. The part 22 is notified of the connection result by the call.

Then, the called party 22 connects a call signal (ring signal) to the passive subscriber station 24 serving as the called party subscriber terminal in step 66, and the passive subscriber station 24 responds to the ring signal. When a response (ie, off-hook) signal is generated, the calling party unit 18 notifies the passive subscriber station 24 of the response in step 68. Upon receiving the response, the calling party unit 18 notifies the guide 12 of the called party's passive subscriber terminal 24 in step 70, and thus the guide 12 receives the response in step 72. The subscriber response confirmation message is notified to the calling party subscriber unit 18, and the operator of the guide 12 and the manual subscriber station 24 are made a call by performing such a process. Call connection to the intermediary passive subscriber station 24 is achieved.

As a post-process for the call path setting process between the guide 12 and the passive subscriber station 24, for example, when the operation of the connect key is performed on the guide 12, the guide 12 Is connected to a pending call / call subscriber or trunk line subscriber (in the present invention, call subscriber terminal 10 with a pending tone connected in step 34) and a passive subscriber station 24, and then waits for subsequent call processing. Done.

In addition, when the Recall key is input at the guide 12, the guide 12 connects a call path with a pending call / calling party subscriber or a trunk line subscriber and then a passive subscriber station 24. The call to and is released.

In addition, when the release key is operated in the guide 12, the call path between the guide 12 and the passive subscriber station 24 is released, and the guide 12 is in the presence of a pending subscriber. When requesting a recall to the guide 12 and the guide 12 responds to the recall, the call processing with the pending subscriber is performed.

As described above, according to the passive subscriber call connection control method in the electronic switchboard according to the present invention, the information of the passive subscriber terminal is registered in response to the call setup request of the guide for the passive subscriber station accommodated in the electronic switchboard. The call connection to the passive subscriber station can be realized by detecting a callable line in the queue and calling the passive subscriber station via the detected line to connect the call path with the guide operator.

Claims (6)

At least one guide stand 12 is accommodated through the Q.921 link unit 14 and the Q.931 protocol unit 16, and the call set-up terminal 10 is called through the guide stand 12. In the electronic switchboard which establishes a call route with the called party's terminal 24 in response to a request, A number group of the passive subscriber station 24 serving as the called party's terminal 24 is set to perform number translation in response to a call setup request of the calling party's terminal 10; At least one or more line information of the passive subscriber station 24 serving as the called party subscriber terminal is stored in a queue to perform a call connection to the passive subscriber station 24 based on the number translation result ( 22), In response to the call setup request for the passive subscriber station 24 mediating the guide 12, the request for number translation is executed and the call setup result for the passive subscriber station 24 of the called party 22 is requested. Passing in the electronic switchboard, characterized in that it is provided with a calling party subscriber unit 18 for transmitting to the guide 12 to establish a communication path between the guide 12 and the manual subscriber station 24 Subscriber call access control device. At least one guide is accommodated through the Q.921 link unit and the Q.931 protocol unit, and the electronic device establishes a call path with the called party's terminal in response to the call setup request of the calling party's terminal through the guide. In the exchanger, Performing a number translation by a number translation unit in response to a call establishment request of the calling subscriber terminal; If the called party's subscriber terminal is determined to be a passive subscriber station as a result of the number translation, performing a call processing to the passive subscriber station by the called party's unit; Passive subscriber call connection control method in the electronic switchboard, characterized in that for passing the result of the call processing to the guide side to establish a communication path between the guide and the passive subscriber terminal. The method of claim 2, wherein the execution of the number translation comprises the steps of: generating a call setup request to the calling party through the guide; Connecting a call tone to the calling party subscriber terminal in the calling party and notifying the guide party of call establishment confirmation; Number translation of the called party's terminal to the number group of the passive subscriber's terminal And determining whether the called party's terminal is a passive subscriber station based on the search result. 4. The method of claim 3, wherein if the called party's subscriber station is abnormal from the passive subscriber station as a result of the number translation, the guide party is informed of an abnormal state so that announcement broadcast to the calling party's subscriber station is performed. Passive subscriber call connection control method in an electronic switch, characterized in that the step is further provided. The method of claim 2. The call processing process may include determining whether the called party is over the range of a group of passive subscribers when an error in the passive subscriber station is requested for the called party. Notifying the guide party when the manual subscriber group is exceeded as a result of the determination, so as to execute the announcement broadcast to the calling party's terminal; Detecting a line number of the passive subscriber station if the passive subscriber group is not exceeded as a result of the determination; Connecting the ring signal to a passive subscriber station if the incoming subscriber unit requests the telephone line connection to the number translation unit if the line state investigation result is normal, and receives the telephone line connection result from the number translation unit; The called party to the called party through the calling party; And notifying the response of the subscriber terminal and receiving the confirmation message of the response from the reception desk by the calling party unit. The method as claimed in claim 5, further comprising: checking whether a subsequent line exists if the abnormal state of the line state is abnormal, and examining the state of the subsequent line in the presence of the subsequent line; And notifying the line rate normal via the originating subscriber unit when the subsequent line does not exist.

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