JPS5972265A - Automatic redialing system - Google Patents

Abstract

PURPOSE:To offer a general telephone set automatic redialing serivce economically by providing a storage circuit for dial codes, to an exchange. CONSTITUTION:A subscriber originates from a telephone set 20 to hear a dial tone from an originating register trunk 274 and dials a dial number, which is receives by and stored in the trunk 274 and then when a central control circuit 28 connects the telephone set 20 to one trunk in a trunk circuit 27, the trunk 274 having transferred the dial number to a dial code storage part 291 is disconnected from the circuit 28. Then, the subscriber originates again and the trunk 274 connected to the telephone set 20 performs reception; if the received dial number is an access code for automatic redialing when the reception is reported to the circuit 28, the circuit 28 selects the trunk 27 by a dial number stored in the originating subscriber number correspondence block of a storage part 291.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic redialing system, and more particularly to an automatic redialing system using an exchange.

Conventional automatic redialing systems have been realized by multi-function terminals connected to switchboards and having memory circuits. The automatic redial system is a service function that allows subscribers to call up the previously dialed code information again with a simple or omitted operation without having to worry about dialing again.1% of long-distance calls reach 10 or more digits. This is useful when re-dialing during a conversation. This will be explained with reference to FIG. FIG. 1 is a functional block diagram illustrating a configuration example of a conventional automatic redial system. The multi-function telephone 10 includes a general telephone circuit 101, a memory circuit 1o2. Control circuit 103
and is connected to an exchange 13 by a subscriber line 11. The exchange 13 accommodates a plurality of subscriber lines 11 and a central office line I4, and has line circuits 15. and 14 for connecting each subscriber line 11 and office line I4 to each other. Main switch 16. Trunk circuit 17. It has a central control circuit 18° and a main memory circuit 19. Trunk circuit 1
7 is a central office line trunk 171 that accommodates the central office line 14 connected to the conversion station of the public line. An intra-office trunk 172 used to connect subscriber lines accommodated in the own exchange. It includes various service trunks 173 provided for each service, and a call register trunk 174 that is connected when a call is made from a subscriber line and receives and stores Atayal code information.

When the telephone set 10 makes a call, the control circuit 103 stores the dial tone in the call circuit 101 in the memory circuit 102.

This memory is not erased until a dial number is given in the next call, and the control circuit 102 calls up the previous dial number by pressing the button 1' and automatically sends it to the converter 13. . The order of this operation is as follows. First, when a call is made using the telephone 10, the section circuit 101 sends a calling signal to the line circuit 15 of the exchange 13 via the subscriber line 11.The central control unit 111 receives this signal and operates the main switch 16 to make a dialing sound. The transmitting register trunk 174 that sends
The talk number and trunk number are stored in the main memory fM19. When the subscriber hears the dial tone on the telephone 10, he makes a desired dial, but when he wants to dial the previously dialed number again, he presses the automatic dialing button on the telephone 10. With this operation, f
) When the subscriber makes a general dial, the control circuit 3.03 similarly reads out the previous dial code stored in the memory circuit 102 and automatically dials the dial code to the outgoing register trunk 174 of the exchange 13 via the subscriber line 11. send. center f
The t7 control circuit 18 connects one of the trunk circuits 17 with a connection path to the number received on the transmit register trunk 174 to this transmit register trunk 174. The main switch 16 is controlled so as to completely release the telephone 174 which has been connected until now.

In this way, the conventional automatic redial system uses a multi-function terminal device that includes a memory circuit that stores the dialed number and a control circuit that calls the number and automatically dials the number.
The disadvantage of the popular and inexpensive general basket filling machines is that they cannot be serviced and become uneconomical.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned drawbacks by providing a dial number storage circuit in an exchange, and to provide an economical automatic redialing system that allows service to be received at a power supply machine.

The automatic redialing system according to the present invention includes an originating dial code reception storage circuit that receives dial code information from a calling subscriber line as a result of transmitting a dial reception ready signal;
an exchange comprising a central control circuit for connecting said calling subscriber line to a line or circuit identified from said dialing code information; and means for converting said received outgoing dialing code information into dialing code information for service; The exchange further includes a storage circuit for storing dial code information used for connection for each corresponding calling subscriber number, and when a predetermined access code is received by the dial code reception and storage circuit, the central control circuit is characterized in that the switching connection is performed using the dial code information stored in the corresponding calling subscriber number position of the storage circuit.

Next, embodiments of the present invention will be described with reference to FIG. FIG. 2 is a functional block diagram showing an embodiment of the automatic redial system of the present invention.

In FIG. 2, a packing machine 20 is housed in a main switch 26 via a subscriber line 21 and a line circuit 25 of an exchange 23. In FIG. -tt Each Kusunoki trunk to which the message packer 0 is connected is included in the trunk circuit 27.

Each is housed in the main switch 26. The various trunks include a central office line trunk 271 connected to the central office line 24. An intra-office trunk 272 that connects the local telephones of the converter 23. Service trunk 273 that connects to various services. There is a calling register trunk (outgoing dialing code receiving and storing circuit) 274, etc., which receives and stores dialing code information from the calling subscriber line as a result of sending a dial reception ready signal to the calling telephone. The connection operation of the main switch 26, which is the main function of the exchange 23, is performed by the central control circuit 28. A part of the main memory circuit 29 used for main storage is allocated as a dial code storage section 291 to a block corresponding to a subscriber line (corresponding to a calling subscriber number), and dial number information at the time of a call is stored in this block. From the outgoing register trunk 274, which receives and stores the packets, the central control circuit 28
Posted. First, when the power input is called 1 from the stuffing machine 20.

The central control circuit 28 detects this through the line circuit 25 and operates the main switch 26 to connect it to the originating register trunk 274 . The number of the connected party (dial number) that the subscriber dialed after listening to the optical tone from the calling register trunk 274
is the received storage A for each digit in the originating register trunk 274.
JHf'L. After all the digits have been accumulated, the central control circuit 28 receives notification of the accumulated dialed number and uses a predetermined operation to connect the calling telephone 20 to the desired destination in the trunk circuit 27. When connected with one trunk.

The transmission register trunk 274, which has transferred the stored dial number to the dial code storage 4λ storage section 291, is disconnected from the main switch and central control circuit 28, and also erases the received dial number. The subscriber calls again and calls - 4 handset 20
After the dialing register trunk 274 connected to the central control circuit 27 receives the dialed number, the central control circuit 28 is connected to the central control circuit 7'.
If the dial number received at the time of notification is an access code (for example 'si') that cannot be used for redialing the own Tj Jr., the central control circuit 28 stores it in the block corresponding to the calling subscriber number of the dial code storage unit 29. The trunk to be connected to the main switch 26 is selected using the currently dialed number.

During this connection operation, the access code -Q"81' which is the received dial number is deleted as is, and the dial code storage unit 29 stores the same dial number as before and does not need to be rewritten. This memorized dial number can be called repeatedly. That is, when the subscriber dials a predetermined automatic redial access code, the exchange reads out the stored dial number and makes a connection. When the dialed number is busy and you need to call again, only two digits are required, so this method is effective for simplifying dialing with 10 or more digits.

In the above example, numbers were explained in detail as a dial number, but if the telephone is not a rotary dial type, even if the dial code is a push button type, it can be realized using the same procedure if the switching device on the receiving side has a receiving function. Yes, the access code is “811”
I explained it with numbers.

A code such as 1#1 may be assigned, and there is no restriction on the number of digits, but from the viewpoint of simplicity, a part or two parts are often used. or,
Although a part of the main memory circuit is used as the dial code accumulation storage section, a separate memory circuit may be provided exclusively. Furthermore, in response to a connection to a number other than the first number dialed by the caller during step calls, automatic forwarding services, etc., the central side control circuit is configured so that the subscriber number finally called is stored in the dial code storage unit. It is also possible to control the

As explained above, according to the present invention, by providing the switching machine with a dial code storage circuit, it is possible to economically receive automatic redial service from a general military filling machine.

[Brief explanation of the drawing]

FIG. 1 is a functional block diagram showing an example of the configuration of a conventional automatic redialing system, and FIG. 2 is a functional block diagram showing an embodiment of the automatic redialing system of the present invention. 20. ・Package machine, 21 ・Subscriber line, 23.
... Switchboard, 24... Central line, 25... Line circuit, 26... Main switch, 27... River/trunk circuit, 28... Central control circuit, 29...・・・・・・
Main memory circuit, 274... Outgoing register trunk (
Outgoing dial code reception storage surface f#I), 291...
...Dial code storage unit.

Claims (1)

[Claims] an outgoing dialing code reception storage circuit that receives dialing code information from a calling subscriber line as a result of sending a dial reception ready signal; and a line or circuit that identifies the calling subscriber line from the dialing code information. The exchange is equipped with a central control circuit to be connected, and a storage circuit for storing dial code information used for connection for each corresponding calling subscriber number in the above-mentioned reception, and a predetermined access code is stored in the received dial code. An automatic redial system characterized in that when a call is received by a circuit, the central control circuit converts and connects using the dial code information stored in the corresponding calling subscriber number position of the storage circuit.