JPH08205212A - Exchange processing system for electronic exchange - Google Patents

Abstract

PURPOSE: To efficiently perform the maintenance of an existing service or the addition of new service by reducing load related to the preparation of an exchange service control program. CONSTITUTION: An electronic exchange 1 which contains plural terminal 2 and can provide various kinds of exchange services is provided with a service control part 10 for controlling the execution of respective kinds of exchange service and a communication processing common part 9 for performing conversion processing with information exchange between an inter-exchange protocol as a communication interface between electronic exchanges 1 and 3 and an inter-exchange-terminal protocol as a communication interface between the electronic exchange 1 and the terminal 2 and providing a service control interface, for which the communication interface between the exchanges and the communication interface between the exchange terminals are integrated, for the interval with the service control part 10 and the communication processing common part 9 is shared for the respective programs of the service control part 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic exchange that performs various exchange services such as an incoming call service and a conference call service, and particularly, efficiently maintains existing services and adds new services efficiently. The present invention relates to an exchange processing system of an electronic exchange suitable for the.

[0002]

2. Description of the Related Art Recent electronic exchanges employ a storage program system and can provide various exchange services such as an incoming call service and a telephone conference service quickly and at low cost. Then, for example, as described on pages 2162 to 2166 of "Electronic Information and Communication Handbook" edited by the Institute of Electronics, Information and Communication Engineers (1988, published by Ohmsha),
The modularization of hardware and software makes it easy to create replacement programs and add functions, and makes the entire system easier to understand and more reliable.

For example, a functional unit that processes an inter-exchange protocol, which is a communication interface between electronic exchanges, and a functional unit that processes an inter-exchange protocol, which is a communication interface between an electronic exchange and a terminal, are separately provided. It has. However, the conversion process between the exchange protocol and the exchange terminal protocol has been performed in the exchange service control program for controlling the exchange service.

As described above, in the conventional electronic exchange, since the exchange service control program converts the inter-exchange protocol and the exchange-terminal protocol, the exchange service control program is large-scaled and complicated.
Furthermore, since it is necessary to describe the protocol conversion process in the exchange service control program, the creator of the exchange service control program is required to have knowledge of both protocols, which imposes a heavy load on the update / creation of the exchange service control program. It was.

[0005]

The problem to be solved is that in the prior art, the conversion process between the exchange protocol and the exchange terminal protocol cannot be performed independently from the exchange service control program. is there. The object of the present invention is to solve these problems of the prior art, to make the exchange service control program small and simple, to reduce the load associated with program creation, to maintain existing services and to add new services. An object of the present invention is to provide an exchange processing system for an electronic exchange that enables efficient operation.

[0006]

In order to achieve the above object, an exchange processing system for an electronic exchange according to the present invention comprises (1)
Service control unit 10 for controlling execution of each exchange service
And the inter-exchange protocol, which is a communication interface between the electronic exchanges 1 and 3, and the exchange-terminal protocol, which is a communication interface between the electronic exchange 1 and the terminal 2, and performs conversion processing accompanying information exchange, and communication between the exchanges. A service control interface 13 that integrates an interface (inter-exchange interface 12) and a communication interface between exchange terminals (inter-exchange terminal interface 11).
Is provided between the service control unit 10 and the communication processing common unit 9, and the communication processing common unit 9 is shared by each program of the service control unit 10. (2) In the exchange processing system of the electronic exchange described in (1) above, a subscriber information collection interface 14 that enables access to the subscriber information 6 regarding each terminal 2 from the communication processing common unit 9, A relay line information collection interface 15 that enables access from the communication processing common unit 9 to the relay line information 7 related to the connection destination exchange 3 is provided, and the communication processing common unit 9 exchanges between exchanges exchanged between the connection destination exchanges. Setting the subscriber information 6 in the messages 26 and 40,
Further, the relay line information 8 is set in the exchange-to-terminal messages 20, 46 exchanged between the terminals. Also, (3) above (1) or (2)
In the exchange processing system of the electronic exchange described in any one of 1, the communication processing common unit 9 interprets each information element and message name of the inter-exchange protocol and the inter-exchange terminal protocol, and changes from the inter-exchange protocol to the inter-exchange terminal protocol. And the conversion of the information element and the message name from the inter-switch protocol to the inter-switch protocol. Further, (4) in the exchange processing system for an electronic exchange according to any one of (1) to (3) above, the communication processing common unit 9 causes the confirmation message for the received message from the exchange 3 and the terminal 2 of the connection destination. It is characterized by determining the presence or absence of. Also,
(5) In the exchange processing system for an electronic exchange according to any one of (1) to (4), the service control unit 10
Takes in the received message from the exchange 3 or terminal 2 of the connection destination and the transmission message to the exchange 3 or terminal 2 of the connection destination, reads the information element of the reception message, selects the transmission message and sets the information element. Is characterized by.

[0007]

According to the present invention, the exchange is controlled by the state of the communication control unit for controlling the communication with the exchange or the terminal of the connection destination, the information sent from the exchange or the terminal of the connection destination, the subscriber information and the trunk line information. The protocol conversion process is performed in the communication process common unit independently of the service control program by utilizing the ability to convert the inter-protocol protocol and the inter-exchange terminal protocol. Also, by allowing the common communication processing unit to access both subscriber information and trunk line information, subscriber information is set in inter-switch messages and trunk line information is set in inter-switch messages. Is possible. Furthermore, by arranging information elements of the inter-exchange protocol and inter-exchange protocol and the message name interpretation function in the communication processing common part, the inter-exchange protocol to the exchange inter-terminal protocol and the exchange inter-terminal protocol to the exchange Converts information elements and message names to inter-protocol.

Further, the communication processing common unit determines whether or not there is a confirmation message for a received message from the exchange or terminal of the connection destination, thereby eliminating the need for the confirmation message transmission determination in the exchange service control program of the service control unit. . Then, the received message from the connected exchange or terminal goes through the exchange service control program of the service control unit, and the sent message to the connected exchange or terminal also passes through the exchange service control program of the service control unit. By performing the procedure to be transmitted after that, it becomes possible to read the information element of the received message in the exchange service control program, select the transmitted message and set the information element.

[0009]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of a configuration according to the present invention of an exchange processing system for an electronic exchange according to the present invention. In the figure, 1 is an electronic exchange, 2 is a terminal, 3 is a destination exchange, 4 is an exchange processing unit as the exchange processing system of the present invention, 5 is a subscriber line communication control unit for controlling communication with the terminal 2, 6 is subscriber information representing attributes of the terminal 2, 7 is a trunk line communication control unit for controlling communication with the destination exchange 3, 8 is trunk line information regarding the destination exchange, and 9 is protocol conversion processing according to the present invention. Communication processing common part to perform, 1
0 is a service control unit that controls execution of various exchange services by each exchange service control program, 11 is an inter-exchange terminal interface, 12 is an inter-exchange interface, 13 is a service control interface, 14 is a subscriber information collection interface, and 15 is The trunk line information collection interface 16 is a communication path device.

The subscriber information 6 includes a terminal type indicating whether the terminal 2 is an analog type or a digital type, a user type indicating whether the terminal 2 is a general telephone or a public telephone, and , NCC (New Common
Carrier, new telecommunications carrier) Contract type, incoming call control display (ringing / no ringing), line display (with / without satellite line), and the like. There is a line type indicating whether the connection is an analog system or a digital system.

The electronic exchange 1 is connected to the terminal 2 via the subscriber line communication control unit 5 of the exchange processing unit 4, and is also connected to the connection destination exchange 3 via the trunk line communication control unit 7. The subscriber line communication control unit 5 is a protocol processing unit for transmitting / receiving a message to / from the terminal 2, and is connected to the communication processing common unit 9 at the exchange terminal-to-terminal interface 11. Further, the trunk line communication control unit 7 is a protocol processing unit for transmitting and receiving a message to and from the connected exchange 3, and is connected to the communication processing common unit 9 at the inter-exchange interface 12.

[0012] The service control unit 10 is based on the exchange service control program with which the terminal 2 and the connected exchange 3 are connected.
Various exchange services are executed by setting parameters to be exchanged by a communication message with and communication channel device 16 is controlled. The communication processing common unit 9 includes an inter-exchange terminal interface 11 and an inter-exchange interface 12
The service control unit 10 has a conversion function common to various exchange services associated with the exchange of information between the exchange terminal and the exchange control terminal interface 11 and the exchange control interface 12.
A service control interface 13 that is an integrated interface is provided.

Further, the communication processing common unit 9 converts the inter-exchange terminal interface 11 and the inter-exchange interface 12, the exchange terminal interface 11 and the service control interface 13, and the inter-exchange interface 12 and the service control. Interface 1
In order to utilize the subscriber information 6 indicating the attributes of the terminal 2 in the conversion processing of No. 3, the subscriber information collection interface 14 with the subscriber information 6 is provided. Similarly, the communication processing common unit 9 has a trunk line information collection interface 15 with the trunk line information 8 in order to use the trunk line information 8.

Next, the function of the communication processing common unit 9 is divided into the subscriber line communication control unit 5 and the trunk line communication control unit 7, and the service control interface 13 described above is an interface based on the inter-exchange terminal interface 11. An example will be described with reference to FIGS. First, the flow of processing when the electronic exchange 1 receives a message from the terminal 2 will be described with reference to FIGS.
The flow of processing when the electronic exchange 1 receives a message from the destination exchange 3 will be described with reference to FIG.

FIG. 2 is an explanatory diagram showing a specific example of the flow of processing when a message is received from the terminal of the electronic exchange in FIG. 1, and FIGS. 3 and 4 are flow charts showing an example of the processing operation. is there. The flow of processing in FIG. 2 will be described below with reference to FIGS. 3 and 4. First, terminal 2
Upon receiving a message from the communication processing common unit 91
Then, the inter-exchange terminal message 20 is received from the subscriber line communication control unit 5 (step 101). In the communication processing common unit 91 of FIG. 2, this inter-exchange terminal message 20 is set as a service control message 22 (step 102), and the parameter 23 of this service control message 22 is set to the subscriber line communication control unit 5 of FIG. 2 first. The parameter 21 of the received message 20 between the exchange terminals is copied (step 103).

Then, in the inter-exchange interface 12,
It is determined whether or not the inter-exchange message 26 corresponding to the service control message 22 exists and whether or not the parameter 27 of the inter-exchange message 26 is due to the subscriber information 6 (step 104). If it does not exist, the process jumps to step 106, and if it does exist, the subscriber information 6 is accessed and the value set in the parameter 27 of FIG. 2 is set in the parameter 23 (step 105). In the communication processing common unit 91, after setting the parameter 23 according to the state 30 (step 106), the state 30 is updated (step 107), and the service control message 22 is displayed as shown in FIG.
It is handed over to the service control unit 10 together with the parameter 23 in (step 108). Here, the processing of the communication processing common unit 91 in FIG. 2 ends.

Upon receiving the service control message 22, the service control unit 10 performs a process corresponding to the service control message 22 (step 109), and the next service control message 24 is sent to the communication process common unit 92 of FIG.
To set parameter 25 (step 11
0). Normally, the service control message 22 and the service control message 24 are the same, but when the service control message 22 and the service control message 24 are different, the service control unit 10 sets all necessary contents in the parameter 25. .

The service control unit 10 uses the communication processing common unit 9
When it is determined that the service control message 24 is not handed over to 2 (step 111), the process ends. Further, in the case of taking over, in the communication processing common unit 92,
Receive the service control message 24 (step 11
2) It is determined whether or not the message 26 corresponding to the service control message 24 exists in the inter-switch interface 12 (step 113). If it does not exist, the process jumps to step 119, and if it exists, the inter-switch message 26 of the inter-switch interface 12 corresponding to the service control message 24 is selected (step 11).
4).

Then, the parameter 25 is converted into the parameter 27 of the inter-exchange message 26 (step 11).
5) After setting the parameter 27 according to the state 31 of the communication processing common unit 92 (step 116), the state 31 is updated (step 117), and the inter-exchange message 26 is transmitted together with the parameter 27 to the trunk line communication control unit 7 (Step 118). Further, it is determined whether or not there is a confirmation message for the exchange terminal message corresponding to the service control message 24 (step 119), and if there is no confirmation message, the process ends. If there is a confirmation message, the confirmation message is read as 42 (step 120), and “step 20” in FIG.
7 ”.

FIG. 5 is an explanatory diagram showing a specific example of the flow of processing when a message is received from the connected exchange of the electronic exchange shown in FIG. 1, and FIGS. 6 and 7 show an example of the processing operation. It is a flowchart. The flow of processing in FIG. 5 will be described below with reference to FIGS. 6 and 7. First, upon reception of a message from the destination exchange 3 of FIG. 5, the communication processing common unit 92 receives the inter-exchange message 40 from the trunk line communication control unit 7 (step 20).
1). The communication processing common unit 92 of FIG. 2 determines whether or not the inter-switch terminal message 46 corresponding to the inter-switch message 40 exists in the inter-switch terminal interface 11 (step 202).

If it does not exist, the inter-switch message 40
As a service control message 42 (step 20
3), the parameter 43 of the service control message 42
The parameter 41 of the inter-switch message 40 received from the trunk line communication control unit 7 is copied to (step 20
4) Jump to step 209. If it exists, the inter-switch terminal message 46 corresponding to the inter-switch message 40 is set as the service control message 42 (step 205), and the inter-switch message received from the trunk line communication control unit 7 is set in the parameter 43 of the service control message 42. The parameters 41 of 40 are converted and set (step 206).

Next, whether or not the trunk line information 8 is necessary to set the parameter 43 of the service control message 42, that is, the parameter 43 of the service control message 42 depends on the trunk line information. It is determined whether or not (step 207). If it does not exist, the process jumps to step 209, and if it does exist, the trunk line information 8 is accessed and the required value is set in the parameter 43 (step 208). In the communication processing common unit 92, the status 31
After setting the parameter 43 according to
9), the state 31 is updated (step 210), the service control message 42 is handed over to the service control unit 10 together with the parameter 43 (step 211), and the process of the communication process common unit 92 is ended.

Upon receipt of the service control message 42, the service control unit 10 carries out a process corresponding to the service control message 42 (step 212), and, as shown in FIG. 44 is selected and the parameter 45 is set (step 213). Normally, the service control message 42 and the service control message 44 are the same, but the service control message 42 and the service control message 4 are
If 4 is different, the service control unit 10 sets all necessary contents in the parameter 45.

The service control unit 10 uses the communication processing common unit 91.
If it is determined that the service control message 44 is not to be taken over (step 214), the process is ended, but if it is taken over, the communication processing common unit 91 receives the service control message 44 (step 215), and the service It is determined whether the control message 44 is the inter-exchange terminal message 46 of the inter-exchange terminal 11 (step 216). If not, step 222
If so, the service control message 44 is set to the inter-switch terminal message 46 of the inter-switch terminal interface 11 (step 217), and the parameter 45 of the service control message 44 is copied to the parameter 47 of the inter-switch terminal message 46. (Step 21
8).

Further, in the communication processing common unit 91, the status 30
After setting the parameter 47 according to
9) The state 30 is updated (step 220), and the inter-exchange terminal message 46 is handed over to the subscriber line communication control unit 5 together with the parameter 47 (step 221). And
The inter-exchange message corresponding to the service control message 44 is indexed, and it is judged whether or not there is a confirmation message of this inter-exchange message (step 222). If not, the process is terminated. If this confirmation message exists, this confirmation message is added to the service control message 22.
(Step 223) and the process starts from step 104 in FIG.

As described above with reference to FIGS. 1 to 7, in the electronic exchange of this embodiment, the subscriber line communication control unit 5 is used.
Conversion processing accompanying information exchange between the relay line communication control unit 7 and
Since the communication processing common unit 9 is separated from the service control unit 10, the service control unit 10 can be simplified. The present invention is not limited to the embodiments described with reference to FIGS. 1 to 7, and various modifications can be made without departing from the scope of the invention.

[0027]

According to the present invention, the conversion processing between the exchange protocol and the exchange terminal protocol can be performed independently of the exchange service control program, and the exchange service control program can be made small and simple. Therefore, it is possible to reduce the load of creating a program, and it is possible to efficiently maintain an existing service or add a new service.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a configuration according to the present invention of an exchange processing system for an electronic exchange of the present invention.

FIG. 2 is an explanatory diagram showing a specific example of the flow of processing when a message is received from the terminal of the electronic exchange shown in FIG.

FIG. 3 is a flowchart showing a first half portion of a processing operation example of the electronic exchange in FIG.

FIG. 4 is a flowchart showing a latter half of the processing operation example of the electronic exchange in FIG.

5 is an explanatory diagram showing a specific example of a flow of processing when a message is received from a connection destination exchange of the electronic exchange shown in FIG.

6 is a flowchart showing a first half portion of the processing operation example of the electronic exchange in FIG.

7 is a flowchart showing the latter half of the processing operation example of the electronic exchange in FIG.

[Explanation of Codes] 1: Electronic Exchange, 2: Terminal, 3: Exchange of Destination, 4: Exchange Processing Unit, 5: Subscriber Line Communication Control Unit, 6: Subscriber Information,
7: relay line communication control unit, 8: relay line information, 9: communication processing common unit, 10: service control unit, 11: interface between exchange terminals, 12: interface between exchanges, 13:
Service control interface, 14: Subscriber information collection interface, 15: Trunk line information collection interface, 16: Call path device, 20: Switch terminal message, 21: Parameter, 22: Service control message, 23: Parameter, 24: Service Control message, 25: parameter, 26: message between exchanges, 2
7: Parameter, 30, 31: Status, 40: Message between exchanges, 41: Parameter, 42: Service control message, 43: Parameter, 44: Service control message, 45: Parameter, 46: Message between exchange terminals, 47: Parameter , 91, 92: Communication processing common unit

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Koji Koshida 1-1-6 Uchiyuki-cho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation (72) Kazuo Takahashi 1-1-6 Uchisai-cho, Chiyoda-ku, Tokyo No. Japan Telegraph and Telephone Corporation (72) Inventor Shinichi Nakajima 5-7-1, Shiba, Minato-ku, Tokyo Inside NEC Corporation (72) Inventor Manabu Matsui 1015 Uedoda, Nakahara-ku, Kawasaki-shi, Kanagawa Within Fujitsu Limited

Claims (5)

[Claims] 1. An electronic exchange that accommodates a plurality of terminals and is capable of providing various exchange services. Service control means for controlling execution of each exchange service and inter-exchange protocol which is a communication interface between the electronic exchanges. And a service control interface that integrates the communication interface between the exchanges and the communication interface between the exchange terminals while performing conversion processing accompanying information exchange with a protocol between exchange terminals that is a communication interface between the electronic exchange and the terminal, An exchange processing system for an electronic exchange, comprising: communication processing common means provided between the service control means and the communication processing common means shared by the programs of the service control means. 2. The exchange processing system for an electronic exchange according to claim 1, wherein a subscriber information collection interface that enables access to subscriber information relating to each terminal from the communication processing common means, and the communication processing. A relay line information collection interface that enables access from the common means to the relay line information relating to the electronic exchange of the connection destination is provided, and the communication processing common means is a message between exchanges exchanged between the electronic exchanges of the connection destination. An exchange processing system for an electronic exchange, characterized in that the subscriber information is set in the switch, and the trunk line information is set in a message between the exchange terminals exchanged between the terminals. 3. The exchange processing system for an electronic exchange according to claim 1 or 2, wherein the communication processing common means is an information element of each of the inter-exchange protocol and the inter-exchange terminal protocol. And the message name are interpreted to convert the information element and the message name from the inter-switch protocol to the inter-switch protocol and from the inter-switch protocol to the inter-switch protocol. Exchange processing system. 4. The exchange processing system for an electronic exchange according to any one of claims 1 to 3, wherein the communication processing common means causes the presence or absence of a confirmation message for a received message from the exchange and the terminal of the connection destination. An exchange processing system for an electronic exchange, characterized by determining 5. The exchange processing system for an electronic exchange according to any one of claims 1 to 4, wherein the service control means includes a message received from the exchange or the terminal of the connection destination and the exchange of the connection destination. An exchange processing system for an electronic exchange, which takes in a message sent to a terminal, reads an information element of the received message, selects the transmitted message and sets an information element.