JPS58114655A - Reset shift call during call - Google Patents

Abstract

PURPOSE:To enable a reset shift call of a junction line regardless of the idle/ busy state of an extension subscriber, by providing a circuit to a junction line trunk to transfer the hooking information to a controller of an electronic switchboard via a trunk scanner. CONSTITUTION:The hooking signal of a caller is received while a called subscriber is under call with an incoming connection from a junction line, and the hooking information is transferred to a controller CC of an electronic switchboard OF2 via a trunk scanner TSCN. Such a circuit is provided to a junction line trunk PVT2. The controller CC receives the hooking signal and switches a connection route between the trunk PVT2 and a called subscriber telephone SUB2 or SUB3 to another connection route between the PVT2 and a register trunk ORT which receives a dial number. Then final one digit of an extension number is dialed after hooking to call newly an extension corresponding to the number obtained by replacing the final one digit of the number which is previously dialed.

Description

Detailed Description of the Invention B) Technical Field of the Invention The present invention is directed to an iA reset shift call method, particularly in an electronic exchange having a trunk line connection function, when an extension subscriber having an incoming trunk line call is called. This relates to a reset shift call method.

(b) Technical background In recent years, a new service called trunk line reset shift call has been implemented as a form of telephone service. In this
m*Reset shift call is used to call another extension subscriber by redialing the last l digit only if the subscriber is busy when an incoming trunk call calls an extension subscriber. This is possible through a service method.

H) Prior Art and Problems In the conventional trunk line reset shift call, the last l digit of the extension number can be shifted only when the called subscriber is busy. For reasons of 7, if a subscriber is idle and ringing, it may not be possible to perform a reset shift call in this case, even if the non-response means that the subscriber wants to call another extension subscriber. In this case, as a means of calling the other extension subscriber, the caller has the option of dialing the on-7 dial, canceling the call, and dialing the trunk number and other extension subscriber numbers again. There are drawbacks that must be met.

OBJECT OF THE INVENTION The present invention addresses the above-mentioned drawbacks of the prior art and provides an efficient trunk line reset shift call method by enabling a reset shift call regardless of the idle/busy status of the subscriber. The purpose is to provide

1. Constituent structure of the invention In an electronic exchange having a trunk line connection function, a caller O hooking signal is received while the called party is ringing by an incoming call from the trunk line, and is sent to the control device of the electronic exchange via a trunk scanning device. The circuit that transfers the hooking information to the trunk trunk is flexible, and the cough control device receives the hooking signal by connecting the trunk to the trunk and the trunk of the called party! Change the connection route between the relay trunk and the register trunk for receiving the dial number, and then dial the last digit of the extension number (t) to receive the previously dialed number. This is achieved by providing a mid-call reset shift call method characterized in that the extension corresponding to the number whose last digit has been replaced is called to 19.

(f) Nine examples of inventions Hereinafter, one embodiment of the present invention will be described based on FIG.

In the drawing, extension subscriber 8U of exchange OFs! I+
If you wish to make a call to the first extension subscriber 80B* of the exchange 0FFO, call @ 8 U B t ke Sending/Receiving I! and first dial the trunk number to select the incoming exchange @OF will, followed by the first extension subscriber SUB! By dialing the telephone number of , the caller IUl* connects the trunk trunk PVTt of exchange OF1 to the trunk line.

Exchange OF, trunk trunk PVTI and call path P
1 to the first extension subscriber 11UBl, and a communication path p to the first extension subscriber 8 U B z
The first extension subscriber SUB is connected via the ringing trunk RGTII and calls the first extension subscriber SUB. In this state @nc, the calling party performs a hooking operation. The booting signal is from the caller to the trunk trunk PVT! ) Rank scanning device T8CN - Information receiving and distributing device 8RD - Central controller CC
Through the route 1. and is transmitted to exchange 02. exchange machine o
Ft releases the communication path PttP* by receiving a 7-king signal from the calling party, and the trunk line)'y
Communication path between PVT and register trunk O
Connect m. The register trunk ORT sends back a special tone to the caller. After hearing the special tone, the caller dials only the last digit to call the second extension, 8 U B s.

Exchange machine OP! replaces the l digit received via the register trunk ORT with the last j@1 digit of the first extension subscriber number, captures the new communication path P4+Ps, and sends the output signal trunk RG7 and the second extension subscriber S U B s to communication path P
By connecting a, the second extension subscriber 8 U B
Call s. Furthermore, while the second extension subscriber 5UBs is being called, the caller can again call the extension subscriber SUB4 by performing a hooking operation and dialing the last digit.

As is clear from the above explanation, according to the present embodiment, the calling party SUB> is connected to the exchange OF via the relay 1ML,
1st extension number 80B.

After hooking as a set shift call request signal, dial the last digit of the extension number of the second extension subscriber 5UBI, and the first extension subscriber who is calling SUB_@ It becomes possible to change to 2 extension subscribers 8U1m. Furthermore, during the actual reset shift call, the connection path from the calling party 8tJB to the trunk trunk PVT is maintained continuously, and there is no need for unnecessary operations of related devices for setting the connection path.

Note that the drawing is merely an embodiment of the present invention; for example, the hooking operation performed by the caller can also be performed by flashing the dial, etc., and the effects of the present invention remain unchanged in either case.C Also, if the caller has a dial number ending in S
/Although it is possible to call an extension subscriber completely different from the first extension subscriber by dialing all the digits of the second extension subscriber number, the effect of the present invention does not change in that case. .

()-1 Effects of the Invention As explained in detail above, according to the present invention, when a calling party is calling a called party via a trunk line, another person accommodated in the same exchange as the called party If you want to make an extension subscriber a new called party, the operations performed by the caller are simplified, and the trunk line connection route up to the terminating exchange is maintained, so
This has a great effect in that the redundant setting operations of related devices are eliminated.

[Brief explanation of the drawing]

The drawing is a diagram of the middle wire connections in an electronic exchange according to an embodiment of the present invention. In the drawings, OFt, OF mushroom---exchange. 8UBs e SUB鵞+ SUBm-m-extension, PV
T+. PVT friend-m-relay edge l/sink, L--one relay line. 0RT---Register trunk, RGT-1-calling trunk I Ps + T's 2 Pa I P4
+ Pi-m-channel, TSCN---) rank scanning device. 8RD--Information reception and distribution unit, CC--Central control unit [, MM--1 Storage device. −Representative patent attorney
Powder amount Hiroyu part powder u, -

Claims (1)

[Claims] In an electronic exchange having a trunk line connection function, a 7-hooking signal from the caller is received while the called party is ringing through an O incoming connection from the trunk line, and the hooking information is transferred to the control device of the electronic exchange via a trunk scanning device. A circuit is provided in the trunk trunk, and upon receiving the wrinkle signal, the control device converts the connecting route between the trunk trunk and the called party telephone to the connecting route between the trunk trunk and the register trunk for receiving the dialed number. 41F image is to change the connection to 19 and dial the last digit of the extension number after hooking. Medium reset shift call method.