JPH0671286B2 - Transmission control method - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a call regulation system, and more particularly to a call regulation system in an electronic exchange having a function of sharing a trunk group in a system and making a detour selection.

(Prior Art) Conventionally, this type of call restriction depends only on the class of the terminal,
It is impossible to reserve some trunks in the same trunk group for a specific terminal in order to capture all the trunks if the call can be originated.

(Problems to be Solved by the Invention) In the above-described conventional call regulation system, all the trunks of the trunk group can be captured without traffic regulation of the calling terminal and regulation between trunk groups, resulting in high traffic. In this state, there is a drawback that a trunk can be reserved for a specific terminal such as an executive and cannot be used in preference to other general terminals, and the method of preparing a separate trunk for a specific terminal is also costly. There is.

An object of the present invention is to provide an electronic exchange having a trunk group and having a function of connecting a call by a number dialed from a terminal or a relay stand, by limiting the number of trunk groups that can be called from a central line relay stand, Removed the above drawbacks by allowing trunks to be captured only by the trunk line relay station, by reserving a part of the trunk group for a specific terminal or station line relay station, and by restricting trunk transmission from other terminals. However, it is another object of the present invention to provide a call regulation system configured to easily and preferentially use a specific trunk.

(Means for Solving Problems) The transmission restriction system according to the present invention includes an electronic exchange body, a trunk number limiting means, a separating means, a capturing means, and a replenishing means, and is more arbitrary than a trunk group. The number of trunks is reserved as trunks that can be captured only by a specific terminal or station line repeater, and if reserved trunks run short, priority is assigned as reserved trunks when trunks can be captured such as when the trunk is restored. It is designed to control the trunk transmission from other terminals.

The main body of the electronic exchange has a plurality of office lines or dedicated lines called a trunk group, and is used for making an outgoing connection by a number dialed from a specific terminal or a station line repeater.

The trunk number limiting means reads out a certain number of arbitrary trunks from the empty trunk list of the trunk group by operating a key or dial operation on the central office relay stand, and the read trunks other than the central office relay stand or a specific terminal are read. This is to restrict the call from the terminal.

The separating means is for separating a plurality of trunks that can be captured by only the station line repeater or a specific terminal from the trunk group based on the number of trunks read by the trunk number limiting means.

The capturing means is for capturing a trunk that can be captured only by the specific terminal or the station line repeater from the specific terminal or the station line repeater.

When there is a shortage of trunks that can be captured by only a specific terminal or station line repeater, the replenishment means will preferentially supplement the trunk that can be captured by restoration etc. as a trunk that can be captured only by a specific terminal or station line repeater. It is for doing.

(Example) Next, this invention is demonstrated with reference to drawings.

FIG. 1 is an explanatory diagram showing a call regulation process according to an embodiment for realizing a call regulation system according to the present invention.

FIG. 2 is an explanatory diagram showing a trunk reservation process from the station line repeater.

FIG. 3 is an explanatory diagram showing a re-registration process to the empty trunk list.

FIG. 4 is an explanatory diagram showing the storage areas of the empty trunk list and the special empty trunk list.

1 to 3, 101 to 107, 201 to 203, 301 to 3
Each of 05 is a processing step.

In FIG. 1, after the general extension dials the called number in step 101, in step 102 an empty trunk is selected from the normally used empty trunk list. Here, when the selection of the empty trunk is completed,
The call is connected by the step 106, but when the trunk is fully busy, the step 103 is used to check whether the terminal is the calling terminal or the general terminal. Therefore, the busy tone is connected as a reservation trunk call restriction.

Next, if the calling terminal is a specific terminal and a station repeater, a reserved trunk is selected from a special empty trunk list by step 104, and if it can be captured, step 105 is selected. Connect outgoing call. If all the lines are busy, the busy tone is connected by step 107.

In FIG. 2, in order to reserve a part of the trunk group from the station relay stand, after dialing the trunk reservation access code in step 201, a certain number of trunks are selected from the normally used empty trunk list in step 202. The trunk read out at step 203 is stored in a special empty trunk list.

Next, the update of the empty trunk list and the special empty trunk list is performed as follows. That is, in FIG. 3, after detecting the restoration of the trunk by step 301,
At step 302, it is checked whether or not the trunk reservation is being executed. If not, then at step 305 the restored trunk is set in the empty trunk list.

If a trunk reservation is in progress, step 303
Check whether or not the required number of trunks is set in the special empty trunk list. If there is no shortage, set the recovery trunk to the empty trunk list by step 305. Step 304 sets the recovery trunk to a special empty trunk list by step 304.

As described above, by performing a trunk reservation operation from the central office relay stand, it is possible to reserve a fixed number of trunks in the same trunk group and to restrict outgoing calls from general terminals to the reserved trunks. . Here, it is obvious that the calling side terminal can be applied to all terminals such as a station repeater, a station line, or a leased line of an extension subscriber.

(Effects of the Invention) As described above, according to the present invention, during high traffic, the trunks in the same trunk group are divided into a general extension and a specific extension or station line repeater by operation from the station repeater. Since it can be used, there is an effect that it is possible to preferentially process a call from an extension of a high class such as a cadre or a call for requesting an emergency request to a station repeater.

In addition to the trunk normally used for emergency calls,
Since the trunk used preferentially is not required, there is an effect that the cost can be reduced.

[Brief description of drawings]

1 to 4 are explanatory views showing a series of embodiments for realizing the call regulation system according to the present invention. 101-107, 201-203, 301-305 ... Processing step

Claims (1)

[Claims] 1. An electronic exchange main body having a plurality of station lines or dedicated lines called a trunk group for making outgoing connection by a number dialed from a terminal or a station line repeater, and a key operation of the station line repeater. Alternatively, by reading a certain number of arbitrary trunks from the empty trunk list of the trunk group by dial operation, a trunk for restricting the read trunks so that the trunk line repeater or a general terminal other than a specific terminal cannot make a call. Number limiting means, separating means for separating from the trunk group a plurality of trunks that can be captured only by the central office repeater or a specific terminal based on the number of trunks read by the trunk number limiting means, the specific terminal or station The trunk that can be captured only by the line repeater is captured from the specific terminal or the station line repeater. If there is a shortage of the capturing means and the trunk that can be captured only by the specific terminal or the station line repeater, the trunk that can be captured by the restoration or the like is prioritized as the trunk that can be captured only by the specific terminal or the station line repeater. When a reserved number of trunks out of the trunk group is reserved as a trunk that can be captured only by the specific terminal or the central office repeater, and the reserved trunks run short. Is configured so that when the trunk can be captured such as when the trunk is restored, it is preferentially assigned as the reserved trunk so that the transmission of the trunk from other terminals can be restricted.