JPH0195652A - Private line automatic relay connection control system - Google Patents

Abstract

PURPOSE:To contrive to simplify the connection while reducing a private line relay connection time by giving a connection data to a private line trunk and detecting the connection data when the private line trunk receives a private line incoming start signal so as to apply acquisition control to an idle private line trunk of a corresponding path. CONSTITUTION:A connection data to specify in advance a path of a private line for the connection acquisition control for each path is given to private line trunks PUT00, 01, 10, 11, 02, 03. When the private line trunks PUT00, 01, 10, 11, 02, 03 receive a private line incoming start signal, the connection data is detected to acquire the idle private line trunk of the path corresponding to the connection data to apply the relay connection of the private line. Thus, the private line relay connection time is reduced and the connection is simplified.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a leased line automatic relay connection control system in an electronic private branch exchange (PBX).

[Prior Art] Conventionally, private line connection control in a private branch exchange device that accommodates a leased line involves receiving a dial signal sent from a previous-stage switching device at the next-stage switching device, and then using the next-stage switching device to check the destination of the connection. Dedicated line relay connections were made by determining the route of the switching equipment.

[Problems to be Solved by the Invention] However, the conventional leased line relay connection method described above requires a leased line route selection dial reception and a route selection control program in the exchange equipment, and because of the stepwise connection method, the number of relays is limited. As the number increases, the connection time to the other party becomes longer, and the number of dialing digits and the number of pulse sending digits on the caller's side increases, resulting in a longer monitoring time in terms of program control.

Furthermore, there are drawbacks such as the number of times the relay exchange register is captured, and re-dialing operations due to incorrect dialing cannot be avoided.

[Means for Solving the Problems] An object of the present invention is to solve the above-mentioned problems and provide a leased line automatic relay connection control system that reduces the time for leased line relay connection, simplifies the connection, etc. do.

In order to achieve the above object, a leased line automatic relay connection control system according to the present invention is a leased line automatic relay connection control system for a private branch exchange device that accommodates a leased line via a leased line trunk and performs relay connection of the leased line. a provision means for providing connection data specifying a connection route of the dedicated line in advance to each of the dedicated line trunks; and detecting that the connection data is not present when the dedicated line trunk receives a dedicated line incoming activation signal. and a connection control means for performing a relay connection of the leased line by capturing an empty leased line trunk of the route corresponding to the connection data.

[Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing a leased line automatic relay connection control system according to this embodiment.

In the figure, in the leased line automatic relay connection control system according to this embodiment, four private branch exchanges (hereinafter abbreviated as PBX) are used.
A, 0, 1. B are connected in cascade. PBX, A accommodates subscriber A, and PBX, A and PBX, 0 each have mutual leased line trunks PUTAO, AI, A2,
It is connected via private line trunks PUTO0, 02, 04 and a private line. PBX, O accommodates subscriber O, and PBX, 0 and PBX, 1 are connected via private line trunks PUTOI, 03, private line trunks PUI0, 20, and private lines, respectively. PBX,1 accommodates subscriber 1, PBX,1 and PBX,B are connected to private line trunk PUTII and private line trunk PUTBO via a private line, and PBX,H accommodates subscriber B. It is accommodated.

Also, each PBX, A, PBX, O, PBX, 1゜PBX,
A register and a register sender RST are connected to B, respectively.

According to this embodiment, 5PBX,O and PBX,1 have respective leased line trunks PUTOO,Of,10°11.02,03
For each route, connection data that specifies the route of the leased line for connection acquisition control is given in advance, and when each leased line trunk receives an outgoing or incoming signal, the leased line trunk PUTOO is sent to the leased line trunk.
and PUTOI, PUTIO and PUTII.

It has a control program that automatically closes the train between each of PUTO2 and PUTO3.

Also, terminating PBX, A, PBX, B17) Leased line trunk PUTAO, PUTA1. PUTA2゜PUTBO,P
UTO4 and PUT20 are the same trunks as in conventional control.

Figure 2 shows the private line trunk PUT of PBX 0 in Figure 1.
This is a diagram showing a case where the number of leased line trunks in the OO, PUTO1, PUTO2, PUT03 portions is multiple lines, and in this case, empty trunk acquisition control is performed for each route of each leased line trunk PUT.

Next, the operation of this embodiment will be explained.

When subscriber A of PBX A raises the handset and picks up register RST and opens a dial tone, dials the outgoing route special code "6" to subscriber B, and the leased line trunk PU
A call is initiated to the TAO. When the leased line trunk PUTOO receives the leased line incoming activation signal, the PBX, O detects the connection data of the leased line trunk PUTOO, and connects the leased line trunk P of the route corresponding to the leased line trunk PUTOO.
Capture and control UTO1. In addition, in the case shown in Figure 2,
As described above, an empty private line trunk is acquired from the private line trunk group PUTO1. Konoyo Uni, PBX, O,
PBX, l) Under the control of leased line trunks PUTAO to PUTOO, PUTOI, PUTIO.

PUTI 1. PUTBO and register R5T (PB
The train is closed via register R5T of PBX, H, and subscriber A receives a dial tone (PBX,
Listen to B).

Thereafter, when subscriber A dials subscriber B's extension number, subscriber A can call subscriber B and make a telephone call. Further, an outgoing connection from subscriber B to subscriber A can be made in the same manner.

On the other hand, if the leased line trunk PUTO4 or PUT20 is captured from PBX,p,PBX,1(7) subscriber O or subscriber 1, the PBX accommodated by that subscriber 0゜1
, 0.1 controls the busy tone connection when all routes are busy.

[Effects of the Invention] As explained above, the present invention assigns connection data to a leased line trunk, detects the connection data when the leased line trunk receives a leased line incoming activation signal, and determines whether the corresponding route is vacant. By controlling the acquisition of leased line trunks, it is possible to shorten the leased line relay connection time, simplify the leased line relay connection program, and increase the call volume of the register sender for relay dialing.
It also has the effect of reducing the number of invalid attempts such as re-dialing due to incorrect dialing.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing a leased line automatic relay connection control system according to an embodiment of the present invention, and FIG. 2 is a diagram showing a leased line empty trunk selection control system. A, B, O, l: Subscriber PUTAO~A2, PUTOO~04゜PUTIO,
PUTI 1, PUT20. PUTBO: Private line trunk R3T: Register and register sender

Claims (1)

[Scope of Claims] In a leased line automatic relay connection control method of a private branch exchange device that accommodates leased lines via leased line trunks and performs relay connection of the leased lines, a provision means for providing connection data that specifies a connection route for the private line; and when the leased line trunk receives a leased line incoming activation signal, detects the connection data and assigns an empty leased line to a route corresponding to the connection data. A leased line automatic relay connection control system comprising a connection control means for relaying a leased line by seizing a trunk.