JPH03153151A - Duplicate telephone number switching system - Google Patents

Abstract

PURPOSE:To attain switching of telephone numbers in duplicate without informing it to a maintenance personnel of a telephone station by dialing a telephone number desired succeedingly to be in operation from a subscriber terminal equipment to which the telephone numbers in duplicate are given. CONSTITUTION:When a caller makes a call from a SUB 1, a channel controller (SWC) 5 sends call detection information and caller LEN information to a CPU 6. Succeedingly, a caller dials a telephone number B of the SUB 1 used by itself, an outgoing register trunk(ORT) 3 sends the telephone number B to the CPU 6 via the SWC 5. The CPU 6 collates the caller LEN information and the called party LEN information to read two telephone numbers A, B and designated information from a subscriber data memory(DM) 8 according to the LEN information to rewrite the designation information so that the telephone number A designated as the telephone number of the SUB 1 up to now is switched into the telephone number B as the telephone number of the SUB 1.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a dual telephone number switching system, and in particular to a dual telephone number switching system, in which a subscriber's operation is performed by dialing from a dual telephone number assigned subscriber terminal housed in a telephone exchange. Dual Telephone Number Switching Method for Switching Telephone Numbers [Prior Art] Conventionally, in this type of dual telephone number switching method, a maintenance person at the switching center is requested to switch the telephone number.

[Problem to be solved by the invention]

In the conventional dual telephone number switching system described above, a maintenance person performs the switching upon application to the telephone office, and even if the user wants to switch at any time, such as late at night, the user must go through a maintenance person. The disadvantage is that it is inconvenient.

[Means to solve the problem]

The dual telephone number switching method of the present invention is as follows. In a telephone exchange including a call path switch accommodating a dual telephone number subscriber terminal provided with a second double telephone number and a subscriber data memory storing subscriber data of the subscriber terminal;
When the subscriber terminal makes a call with the first telephone number and dials the called telephone number, storing the first telephone number from the subscriber data memory on the call path switch of the calling subscriber terminal; The location information and the accommodation location information on the call path switch of the called subscriber terminal of the called telephone number are read out and compared, and when both accommodation location information match, the calling connection in the subscriber data memory is read out and compared. The present invention is characterized by comprising a control means for rewriting subscriber data regarding the subscriber terminal from the first telephone number to the second telephone number.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the dual telephone number switching system of the present invention.

In FIG. 1, a subscriber telephone (hereinafter referred to as 5UB) 1 assigned telephone numbers A and B is placed in the accommodation position (hereinafter referred to as LEN) of a communication path switch (hereinafter referred to as 5W) 2 via a subscriber circuit (hereinafter referred to as LC) 10. It is accommodated.

A calling register trunk (hereinafter referred to as 0RT) 3 is captured when 5UB1 does not make a call, and is connected to the calling SUB1 via LCIO and SW2 to receive telephone number information. The signal tone trunk (hereinafter referred to as TNT) 4 is captured when a dual telephone number is switched, and the 0 channel control device (hereinafter referred to as 5WC) 5, which is a trunk for sending number switching completion information to the caller, is LClo, SW2,0RT3 and TN
The central processing unit (hereinafter referred to as CPU) 6 monitors the status of T4.
It operates to send information to LCIO, SW2, 0RT3, TNT4 by information from CPU6.
operate to control. CPU6 is the main memory (
MM) 7 and subscriber data memory (DM) 8
The CPU 6 performs exchange processing based on the program and data stored in the 5WC5, and performs connection control via the 5WC5.Furthermore, the CPU 6 reads the calling party LEN and the called party LEN from the DM8, collates them, and if they match, sends the DM8 It has a function of rewriting the designation information of the telephone number of the subscriber at the accommodation location stored in the TNT4 and sending number switching completion information from the TNT4 to the 5UB1 that made the call. MM7
stores the program for controlling exchange operations, and also temporarily stores information being processed. The DM 8 stores the LEN for each subscriber telephone, two telephone numbers, and designation information specifying which of the two telephone numbers is to be operated as the current telephone number of the subscriber telephone.

Next, the operation when a subscriber switches dual telephone numbers will be explained.

Now, assume that 5UB1 is operating with its own phone number A, and when the caller makes a call from SUB1, 5WC5 is
A call is detected from the CIO and the call detection information and caller LEN information are sent to the CPU 6.

Based on this information, CPU 6 sends the L of SUB 1 that was called.
The 5WC5 connects the CIO and 0RT3.

Next, the caller uses his own 5UB1 phone number B.
0RT3 receives this and dials 5WC5.
The telephone number B is sent to the CPU 6 via the CPU 6. The CPU sends the LE of the called subscriber from the DM8 using the received telephone number B.
Read N information. In this case, the called phone number is 5UB1
Since the telephone number is B, that is, the calling party and the called party are the same, the state of this LEN is busy. When the CPU 6 detects that the called party is busy, the CPU 6 sends the calling party LEN information and the called party L
A match is made with the EN information to detect a match between both LENs.

The CPU 6 reads out two telephone numbers A and B and the specified information from the DM 8 based on this LEN information, and up to now, the 5U
The designation information is rewritten so that telephone number A, which was designated as the telephone number of B1, will be switched to telephone number B and used as the telephone number of this 5UB1 from now on. Furthermore, 5W
Specify C5 to connect LClo and TNT4,
A signal tone corresponding to the number switching completion information is sent to the 5LIBI. Furthermore, as a result of the above verification, the calling and called LEN
If they do not match, that is, when the call is made to another subscriber and the called subscriber is busy, normal busy connection processing is performed and SUB
Send a busy tone to 1.

〔Effect of the invention〕

As explained above, according to the present invention, by dialing the telephone number that the subscriber wants to use in the future from a subscriber terminal that has been assigned a dual telephone number, the user can change the dual telephone number without contacting the telephone office maintenance personnel. This has the advantage of being able to perform switching.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the dual telephone number switching system of the present invention. 1... Subscriber telephone (SUB), 2... Call path switch (SW), 3... Outgoing register trunk (○R
T), 4... Signal tone trunk (TNT), 5... Speech path control device (SWC), 6... Central processing unit (cp
U), 7... Main memory (MM), 8... Subscriber data memory (DM), 10... Subscriber circuit (LC)
.

Claims (1)

[Claims] A telephone exchange including a call path switch accommodating a dual telephone number subscriber terminal given a first and second telephone number, and a subscriber data memory storing subscriber data of the subscriber terminal, When the subscriber terminal makes a call with the first telephone number and dials the called telephone number, storing the first telephone number from the subscriber data memory on the call path switch of the calling subscriber terminal; The location information and the accommodation location information on the call path switch of the called subscriber terminal of the called telephone number are read out and compared, and when both accommodation location information match, the calling connection in the subscriber data memory is read out and compared. 1. A dual telephone number switching system comprising: a control means for rewriting subscriber data regarding a subscriber terminal from said first telephone number to said second telephone number.