JPH0326091A - Electronic exchange system - Google Patents

Abstract

PURPOSE:To respond to the change of number translation logic or that of the data of number translation by connecting a routing controller to an electronic exchange, and arranging a trigger table and an index/inquiring means in the electronic exchange. CONSTITUTION:The routing controller 15 consisting of an auxiliary memory device 11 with functions to configure a data base and to operate it, a computer 12, a connection device 13, and a cable 14 for connection is connected to the electronic exchange 16. The electronic exchange 16 is equipped with the trigger table 17 to show whether or not the decision of the routing of an accepted call should be performed with the routing controller 15, and the index/inquiring means 18 to issue inquiry to the routing controller 15 at need by indexing the trigger table 17. In other words, the electronic exchange 16 indexes the trigger table 17 when a call is accepted, and issues the inquiry to a routing controller 15 side at need. In such a way, it is possible to easily perform the change of the logic of the number translation and the change and the design of the data.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a call control method for an electronic switching system, and particularly to an electronic switching system with improved call routing control.

[Conventional technology]

Electronic exchanges have traditionally used routing data stored in the memory of the central processing unit within the exchange.
A control program, also located in this memory, controlled call routing.

For example, in the procedure of translating a dialed telephone number and determining the outgoing route to connect the call to the destination, the routing control program searches for a numeric translation table, that is, to determine the outgoing route using the telephone number. This data was used to determine the exit route.

[Problem to be solved by the invention]

In this way, in conventional routing control, the data for number translation and the program for controlling this all reside in the memory within the central processing unit of the electronic exchange. For this reason, many programs for implementing other functions were integrated and managed on this memory, resulting in the following problems.

(b) Changing the number translation logic affected other programs.

That is, since the number translation logic is managed in an integrated manner with other programs, changing the number translation logic may affect not only this part but also other programs. For example, it may be necessary to change the memory location of another program.

(b) It is not possible to freely design or change the structure of data for number translation.

Memory space within the central processing unit of an electronic switch is limited. Therefore, it is not possible to freely design the structure of data for number translation. It is thought that services will become more diverse in the future, and data is expected to become more complex and larger as a result. To accommodate this, it is required to be able to flexibly design or change data structures. Such support is difficult if the memory of the central processing unit is used.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an electronic exchange system that allows changing the logic of number translation and easily designing and changing data.

[Means to solve the problem]

In the routing control system of the present invention, as shown in principle in FIG.
A routing control device 15 is connected to an electronic exchange 16, which includes a computer 12 connected to the computer 12, a connection device 13 for connecting the computer to the electronic exchange, and a connection cable 14 for connection. Inside the electronic exchange 16, there is a trigger table 17 for indicating whether or not the routing control device 15 makes the routing decision for the received call, and a trigger table 17 for indexing this trigger table 17 and inquiring the routing control device W117 when necessary. An index/inquiry hand 18 is provided.

That is, in the present invention, when a call is accepted, the electronic exchange 16 indexes this trigger table and, if necessary, makes an appointment with the routing control device 15.
Correspond to number translation logic and number translation data changes.

〔Example〕

Hereinafter, the present invention will be explained in detail with reference to Examples.

FIG. 2 depicts an electronic switching system in one embodiment of the present invention. A central processing unit 23 for performing this control is connected to the switch circuit network 22 of the electronic exchange 21, and this central processing unit 23 is connected to a routing control device 25 via a cable 24. The subscriber line or trunk line 26 is connected to the switch network 22 via a subscriber circuit or incoming trunk (ICT) 27.The switch circuits 1 and 22 each have a The first and second outgoing trunks (○GT) 28 and 29 are connected.

As already explained in FIG. 1, the Routing M@ device 25 includes an auxiliary storage device, a computer connected thereto, and a central processing unit connected to the auxiliary storage device! It is composed of a connecting device and a cable that connects 23. Furthermore, a trigger table is stored in a memory (not shown) in the central processing unit 23, as explained in FIG.

In the electronic exchange system configured as described above, dial information sent via the subscriber line or trunk line 26 is received by a register (not shown).

The central processing unit 23 reads this dial information by executing the program. Then, it is determined whether or not it is necessary to make an inquiry to the routing M control device 25 by indexing the trigger table, and if necessary, this inquiry is made.

FIG. 3 shows the flow of operations performed by the central processing unit for this purpose.

That is, when the central processing unit 23 of the electronic exchange receives the dialed digits (step in FIG. 3), it indexes the trigger table (step ■). Then, based on this result, it is necessary to make an inquiry to the routing control device 25. It is determined whether or not (step ■). If it is necessary to make an inquiry (Y>), an inquiry is made to the routing control device 25 for routing information. Routing is then executed according to the input information (step ■). On the other hand, if it is not necessary to make an inquiry in step (2), the process proceeds directly to step (2) and executes routing.

FIG. 4 shows an example of a trigger table prepared within the central processing unit. In the trigger table, the format of the received digits that make up the dial information and whether or not it is necessary to make an inquiry to the calling area and the routing control device 25 are written. If it is necessary to make an inquiry to the routing control device 25, "YES" is written, and if there is no need, "N◯" is written. In the trigger table, cases in which inquiries are made to the routing control device 25 are listed in a limited manner, and other cases are processed by the central processing device 23.

FIG. 5 shows an example of a numeric translation table provided in the auxiliary storage device of the routing control device. A numeric translation table is created and stored in the auxiliary storage device of the routing control device 25 in advance. The numeric translation table is composed of input information consisting of dial information and caller's region, internal information consisting of day of the week and time zone, and output information consisting of telephone number and route name.

When the routing information is inquired of the routing control device 25 in step (3) in FIG. 3, the information sent from the electronic exchange 21 is used to perform indexing using a numerical translation table. Then, as output information, the telephone number and route name that define the routing destination of the call are determined.

For example, the dial information "110" from the electronic exchange 21 and the area number "0471" representing the region of the caller are
It is assumed that the message was sent at 5:00 AM on Tuesday.

In this case, when the number translation table shown in FIG. 5 is indexed, "0472-82-0110" is obtained as the telephone number.

The routing control device 25 sends this output information to the electronic exchange 2.
Return it to l.

The central processing unit 23 of the electronic exchange uses this output information to determine the outgoing route and issues commands to the switch network 22 to direct the call to that outgoing route.

In this way, the routing control device 25 makes the routing decision.

〔Effect of the invention〕

In this way, in the present invention, a routing control device is connected to an electronic exchange, and a trigger table and an index/inquiry means for indexing this trigger table and inquiring the routing control device when necessary are arranged in the electronic exchange. As a result, the following effects can be obtained.

(b) Routing logic can be changed without changing the number translation logic of the program in the electronic exchange.

(B) Also, the structure of data for number translation can be freely designed and changed.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the principle structure of the present invention, and FIGS. 2 to 5 are for explaining an embodiment of the present invention.
Of these, Figure 2 is a block diagram showing an overview of the electronic switching system, Figure 3 is a flowchart showing the main parts of the processing operations of the central processing unit, and Figure 4 is a block diagram showing the main parts of the processing operation of the central processing unit. FIG. 5 is an explanatory diagram showing an example of a numerical translation table provided in the auxiliary storage device of the routing system III bag holder. 11...Auxiliary storage device, l2-...Computer, 13...Connection device, l4...
- Connection cable, l5... Routing control device, 16... Electronic exchange, 17... Trigger table, l8... Index/inquiry means, 23. ... Central processing unit, 25 ... Routing control device.

Claims (1)

[Scope of Claims] A routing system comprising an auxiliary storage device having the function of constructing and operating a database, a computer connected to this auxiliary storage device, and a connecting device for connecting this computer to an external device. a control device, a trigger table indicating whether or not the routing control device makes a routing decision for an accepted call, and an index/inquiry means for indexing this trigger table and inquiring the routing control device when necessary. Equipped with
An electronic exchange system comprising: an electronic exchange connected via the connection device.