JP2900433B2 - External line transmission control method in exchange - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for controlling external line transmission of an exchange, and more particularly to a method for reading external line routing information and a method for selecting an external line route.

[Conventional technology]

FIG. 3 is an explanatory diagram of a conventional outside line transmission control method.
The call control program 1 receives the destination number information as an input and calls the external line route information reading program 2 as a function.

The external line route information reading program 2 returns one external line originating route information corresponding to the input destination number information to the call control program 1 as a return value.

The call control program 1 calls the external line transmission restriction program 3 as a function with the received external line transmission route information as an input.

The outside line transmission restriction program 3 determines whether or not the input outside line transmission route information conforms to the service restriction conditions of the transmission terminal, and returns conformance / nonconformance to the call control program 1 as a return value.

When "conformity" is returned as the return value, the call control program 1 calls the external line route selection program 4 with the external line originating route information as a function. The reading of the route information and the checking of the service restriction condition of the calling terminal are repeatedly performed.

[Problems to be solved by the invention]

In the above-described conventional method for reading outside line transmission route information, a plurality of outside line transmission route information cannot be read at once from the outside line route information reading program 2.
When the outside line route information reading program 2 and the outside line transmission restriction program 3 are separate and the read outside line transmission route information does not conform to the service restriction conditions of the calling terminal, the outside line transmission route is continued until the service restriction conditions are met. Reading of information and checking of service regulation conditions must be repeated, and there is a disadvantage that the processing capability of the call control program 1 is reduced.

[Means for solving the problem]

In order to solve such a problem, the present invention provides an external line route information reading program, which creates an external line outgoing route information list including a plurality of external line outgoing route information that conforms to the external line outgoing service restriction conditions of the calling terminal, The line selection program selects one line of the available external line transmission route from the external line transmission route information list.

[Action]

In the outside line transmission control method according to the present invention, the number of function calls of the outside line route information reading program by the call control program can be reduced.

〔Example〕

Hereinafter, an embodiment of an outside line transmission control method in an exchange according to the present invention will be described with reference to the drawings.

FIG. 1 is an explanatory diagram of an embodiment of the present invention. In the figure, 5 is a call control program, 6 is an external route information reading program, and 7 is an external route line selection program.

FIG. 2 is an information state diagram showing an outside line transmission route information list 8 which is an output of the outside line route information reading program 6.

The call control program 5 receives the destination number information as an input,
The external line route information reading program 6 is called as a function.
The outside line route information reading program 6 creates an outside line outgoing route information list 8 including a plurality of outside line outgoing route information corresponding to the received number information and conforming to the service restriction conditions of the calling terminal, and returns a return value to the call control program 5. Will be returned.

The call transmission program 5 includes an outside line transmission route information list 8
, And calls the external route line selection program 7 as a function.

The external line route selection program 7 reads out one external line route information from the received external line route information list 8 and checks whether or not the external line rate line is available. The route line is selected, and the external line route number is returned to the call control program 5 as a return value.

If it is not available, the external line routing information is read out until the available external line route is selected, and the check as to whether or not it is available is repeated. Control program 1
Then, the selected external line route number is returned as a return value.

〔The invention's effect〕

As described above, the present invention reads out an external line outgoing route information list including a plurality of external line outgoing route information that conforms to the external line outgoing service restriction conditions of a calling terminal from an external line outgoing information reading program, The external line route selection program selects one of the available external line originating routes based on the above, so that the number of function calls from the call control program to the external line information reading program can be reduced. This has the effect of increasing the processing capacity of the program.

[Brief description of the drawings]

FIG. 1 is an explanatory view of an embodiment of an external line transmission control method in an exchange according to the present invention, FIG. 2 is an information state diagram showing an external line transmission route information list, and FIG. 3 is an explanation of an external line transmission control method in a conventional exchange. FIG.

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H04M 3/00 H04M 3/16-3/20 H04M 3/38-3/42 H04M 7/00-7/16 H04Q 3 / 54-3/56 H04Q 3/64-3/68 H04Q 3/76-3/78

Claims (1)

(57) [Claims] In an exchange capable of providing an external line transmission service, an external line transmission route information list including a plurality of external line transmission route information that conforms to the external line transmission service restriction conditions of a transmitting terminal is created by an external line route information reading program. An external line transmission control method in an exchange, wherein one of the available external line transmission routes is selected from the external line transmission route information list by an external line line selection program.