JPS62135053A - Recalling connection processing system - Google Patents

Abstract

PURPOSE:To attain the immediate reacquisition of an opposite trunk line in a recalling within a prescribed time by dialing the special number of a caller and restoring once the link of a main switch of a call station for a prescribed time while holding it when an opposite station is busy. CONSTITUTION:When a called subscriber 4 is busy, a BT 26 sends a busy tone to an attendant board ATT 10. When the operator of the ATT 10 dials a special number within a prescribed time, an instruction is given to an SW 12 to restore once an OGT 13 while holding a link (a). A central controller CC 14 acquires again the OGT 13 when the operator of the ATT 10 hooks off and a call tone is sent. When the operator of the ATT 10 redials, an IR 20 receives the called party number and transfers it to the CC 24 thereby connecting an ICT 23 and an LC 21.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a re-transmission connection processing method, and a re-transmission connection processing method in which the originating station switch link is forcibly held by the caller's operation when encountered during a game conversation. Regarding.

[Conventional technology]

Traditionally, this type of repeat connection handling scheme requires that when a leased line or central office line game is busy, the calling subscriber either goes on-hook with the handset and dials again, or sets up outgoing trunk queuing. The method used was to leave the trunk open and then connect as soon as the trunk became available.

[Problem that the invention seeks to solve]

In the conventional re-originating connection processing method described above, when an encounter occurs during a game conversation, the link must be disconnected and re-established, and there is no guarantee that the ring with the originating trunk will be re-connected immediately. In addition, if there are few outgoing trunks and a large number of outgoing trunk queuing settings are set, even if you try to make an emergency call to the central office line or dedicated line, you will have to repeat many operations and the waiting time until you hear the dial tone instead of the troublesome scale will increase. This has the disadvantage that it becomes long and does not allow prompt transmission.

[Means for solving problems]

In the re-call connection processing method of the present invention, when the automatic exchange of the originating station encounters a game conversation at the time of a call, it maintains the connection link between the calling party and the originating trunk for a certain period of time according to the caller's operation. A means is provided for once forcibly restoring the line and reacquiring the game line when the caller goes off-hook again within the predetermined period of time.

〔Example〕

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

FIG. 1 is a block diagram showing an embodiment of the re-transmission connection processing method of the present invention.

In the figure, a calling station 1 and a receiving station 2 are connected by a line 3, and the receiving station 2 accommodates a called subscriber 4. The transmitting station 1 has an relay interface circuit (hereinafter referred to as ATI) 11
A relay stand (hereinafter ATT>10) accommodated in the main switch (hereinafter referred to as 5W) 12 via a main switch (hereinafter referred to as 5W) 12, an outgoing trunk (hereinafter referred to as 0GT) 13 connected to 5W 12, and a main storage device (hereinafter referred to as M) 1
A central control unit (hereinafter referred to as CC
) 14. On the other hand, the receiving station 2 is an SW that accommodates the called subscriber 4 via a line circuit (hereinafter referred to as LC) 21.
22 and the incoming call I accommodated in 5W22 and connected to line 3.
・Rank (hereinafter referred to as IC'r") 23, incoming call register (hereinafter referred to as ■1"L) 20 connected to 5W 22, busy tone transmitter (hereinafter referred to as BT) 26, and dial tone transmitter (hereinafter referred to as D)
T>27, CC2-1, and M2S.

Next, the operation of this embodiment will be explained.

The operator of ATTIO, who is the calling party, dials the destination station 2 after hearing the dial tone using a known method.

The receiving station receives dial information from ATTIO using lR2O as is well known. The lR2O transfers this dial information to the CC 24, and when the CC 24 determines that the dial information corresponds to the number of the called subscriber 4,
Start scanning LC21. If the called party 4 is busy here, the BT 26 sends 5W22. ICT23゜line 3
,0GTI 3. SWI 2. A via ATI 11
Sends busy tone to TTIO. When the ATTIO operator hears this busy tone, he dials a special number within a certain period of time. CCl4 recognizes this special number via ATlll, and when it determines that this special number is a game recovery operation by forced link retention, it instructs 5W12 to temporarily restore 0CT13 while retaining link a, so IC
T23 is also restored, and the transmission of the busy tone is stopped.

Next, if the ATTIO handler is off-hook within a certain period of time, CCl4 will capture 0CT1B again and transmit it to ICT2.
3 becomes an incoming call again and the dial tone from DT27 is 5W2.
2. ICT23. It is sent to the originating station 1 via line 3. When the ATTIO handler hears this dial tone and redials the called party number, the lR2O receives this called party number and forwards it to the CC24, which then dials the known number if the called party 4 is free. Instruct 5W22 according to the method ■cT2B
and LC21 are connected.

Note that since the link a of the 5W12 is restored after the predetermined period of time has elapsed, subsequent calls are processed as new outgoing connections. Further, the above-described retransmission connection operation is normally processed by the CCl4 executing a program stored in the M2S.

〔Effect of the invention〕

As explained above, in the present invention, when an encounter occurs during a game conversation, the caller dials a special number to temporarily restore the game line while maintaining the link of the caller's switch for a certain period of time. When re-calling, the game line is immediately reacquired without performing link reconnection processing.
This has the effect of speeding up re-transmission connection processing.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the re-transmission connection processing method of the present invention. 1... Originating station, 2... Receiving station, 3... Line, 4...
...Called subscriber, l O... Attendant stand (ATT), 11
... Attendant interface circuit (ATI>, 12.2
2...Main switch (SW), 13 Outgoing trunk (OG
T), 14.24... central control unit (CC), 15.
25... Main memory (M), 20... Incoming call register (IR,), 21... Line circuit (LC), 23...
- Incoming call trunk (ICT), 26...busy tone transmitter (BT), 27... dial tone transmitter (DT).

Claims (1)

[Claims] When the automatic switchboard at the originating station encounters a game conversation during a call, it temporarily restores the game line forcibly while maintaining the connection link between the caller and the originating trunk for a certain period of time by the caller's operation, and 1. A re-call connection processing method, comprising means for re-capturing the game line when the caller goes off-hook again during the call.