JPS58184856A - Hot line connecting system via relay line - Google Patents

Abstract

PURPOSE:To attain hot line connection automatically, when a telephone is not dialed within a prescribed time after off-hook, by providing a storage circuit of a subscriber number of hot line connection and a timing detection circuit to a PABX. CONSTITUTION:When an extension subscriber A of the PABX of a station A hooks up a handset, a register R and the subscriber A are connected. The register R monitors hooking at a timer 1 and when no dial pulse is incoming within a prescribed time, a hot line detecting means 2 is operated, a hot line order HO and number information NI are transmitted at a fixed information storage circuit 3, and the number information is transmitted to a station B via a relay line trunk TRK by using a sender S. Thus, the hot line connection is completed and the call is attained. When dial pulses come within a prescribed time after off-hook, the pulses are received at a number reception circuit 4 of the register R for the normal connection.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides hotline connection from an extension subscriber of a private branch exchange (PABX) to an extension subscriber accommodated in another premises or exchange PABX through a dedicated line or the like via a trunk line. This relates to the line connection method.

Conventionally, in order to provide such communication means, that is, hotline connections between different regions, the on-site communication method (hereinafter referred to as P) was used.
This was achieved by providing a dedicated direct line without going through an ABX (abbreviated as ABX). Therefore, in this method, a hotline line must be prepared separately from the 1l=lX dedicated line, and telephones connected to such a hotline line must be connected to other PABX extensions and operators.

Local line, PABX! - There is a drawback that you cannot connect to riverside areas, etc., and PAHXt is not available in addition to hotline connection. There was an inconvenience when trying to receive various connection services via VF.

The purpose of the present invention is to use a dedicated hotline line and an automatic number transmission system when transmitting business and instructions between special telephone departments such as between a head office and a branch office, that is, when calls between specified subscribers are always required. etc. (, PAB
All equivalent hotline connection methods are provided by X's internal judgment alone.

The hotline 4-connection system via trunk line of the present invention is based on the PABX
A hotline support staff is provided at Timing 1, and if a dial pulse is not received from the specified extension subscriber within a certain period of time, the off-off of the specified extension subscriber is regarded as a hotline connection request and decided in advance. PA to which the called example (the other party of the hotline connection) belongs
For the BX direction, select and capture a vacant trunk line, then call 1
The 411 PABX sends the subscriber number of the called party, which is stored in advance as fixed information, to the other party's PABX, and it is extremely difficult for the extension subscriber to continue dialing after Oahu and RI. The said participation shall be deemed as a continuation of the action;
・:・, 1 This is where the number is received from the other party, the number is displayed, and a normal connection is made. Therefore, in the present invention, PABX
At the register housed in! The circuit includes a transmission circuit, a trine selection means, a fixed information storage circuit, and a number reception circuit, and performs timing detection.

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows an example of a network in which a PABX A station and eight PABX stations are connected via trunk lines. In this example, a hotline connection is established between extension subscriber A of station A and private subscriber C accommodated in station B.

FIG. 2 is a relay system diagram showing FIG. 1 in slightly more detail.

Now, when extension subscriber A picks up the handset to make a call, the incoming PABX performs a normal outgoing connection, connects register R to extension subscriber A, and prepares to receive a number from extension subscriber A. After that, at station A PABX, the timing of extension subscriber A is monitored using register R, and extension subscriber A is sent to Oaf.
If dialing is performed within a certain □ time after the call, it will be treated as a request for hotline connection, and a vacant trunk trunk T for station B will be sent.
RK'f;r: Selectively capture. This trunk TRK'i
At the same time as the capture, A station PABX uses sender S and B
11p, the number information (CXX) of extension subscriber C stored as the predetermined Wt=information is sent. - 18 stations perform normal incoming call connection operations,
Extension subscriber C'! Since the i-call is made, extension subscriber A only goes off and calls, as if it were a hotline-only ILllj.
You can connect to extension subscriber C as if you had @.

As can be seen from the same song above, according to the present invention, station A PAHX
The number of the hotline partner 11, which is stored in advance as fixed information in the memory circuit of the register [-If it is stored in a pattern, for example, internal subscriber A - extension subscriber C # H-t D, etc. By creating and inserting combinations of , you can make multiple sets of hotline connections.

FIG. 3 shows a part of the internal block circuit of the register used in the embodiment of the present invention. In other words, hooking caller A? It has a time limit circuit 1 that detects a hotline and a hotline detection means 2 connected thereto, and when it is detected as a hotline, a hotline order H is sent by a fixed information storage circuit 3.
O and number information Nl- are sent, and if not detected, the normal No. 317 receiving circuit 4 receives it. The following connection operation (trunk selection) is well known, and detailed explanation will be omitted.

As described above, by fully adopting the present invention, hotline connections can be made between extension subscribers of different PAHXs without providing a dedicated hotline line.

[Brief explanation of the drawing]

FIG. 1 is a conversion network diagram when implementing the present invention,
FIG. 2 is a relay system diagram of the N-station PAHX (all) shown in FIG. 1, and FIG. 3 is a circuit diagram of the internal program of the register in the present invention.

Claims (1)

[Claims] A timer circuit, a hotline output means, a fixed information storage circuit, and a register installed in the Mizouchi father exchanger 4♀ No. 15
A circuit is provided and timing detection is performed. Trine connection! If you are equipped with a telephone and do not receive a dial pulse within a certain period of time after dialing a specific extension from a person on Oahu, @Hotline connection via a trunk line from the subscriber (Assuming that there is a request, the other party to the hotline connection 1 rule Select and capture a vacant relay Ij! for the other party's private branch exchange where the extension subscriber is accommodated) At the same time,
1. A trunk line characterized in that the subscriber number of the other party is automatically transmitted from a center. Revolutionary hotline connection method.