JPS63312751A - Connection control system for data exchange - Google Patents

Abstract

PURPOSE:To eliminate a trouble for a caller to execute a recall operation to an occupied terminal by storing a calling terminal unit to request a callback setting for a data exchange receives an incoming call during a communication, and executing a call-back connection upon the completion of a communication by a called terminal unit. CONSTITUTION:A data exchange to accommodate and connect data terminal equipment (DTE) 10 investigates the vacancy/occupancy condition of a called DTE with a vacancy/occupancy condition area 41 in a memory device 40, when a connection control device 50 receives a calling request from one of the DTEs 10 and the calling request from a connecting destination DTE. When a called DTE is occupied, it transmits the occupancy information to the calling DTE. When the calling DTE transmits a call-back setting request, the call-back setting means 51 of the device 50 receives it and stores the calling DTE code in the called DTE corresponding area of the call-back destination DTE area 42 in the device 40. When an occupied DTE completes a communication, the device 50 investigates the area 42 and executes the connection operation of the stored DTE.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a connection control system for a data exchange that accommodates and connects data terminal equipment.

[Conventional technology]

The conventional connection control method for data exchanges is that when a data terminal equipment (hereinafter referred to as a DTE) receives a call, the data exchange transmits a signal indicating that the called party is communicating to the calling DTE to control the connection. It was configured to end the procedure.

[Problem that the invention seeks to solve]

° In the connection control method of the conventional data exchange described above, when the DTE that is communicating receives an incoming call, the data exchange
The system is configured to end the procedure by sending a signal indicating that the called party is in use to E, so when the calling party receives the information that the called party is in use, it must dial the connected number again. In addition to requiring manual operations, there is a problem in that the system is inefficient in that it is called repeatedly regardless of the state of the connection destination and ends up being busy.

An object of the present invention is to provide a connection control system for a data exchange that solves the above problems.

[Means for solving problems]

In the connection control method of the data exchange of the present invention, the data exchange has a call return destination DTE memory that stores, as a call return destination DTE, a calling DTE that received an incoming call during communication and requested call return setting for each accommodated DTE. region and the called DTE during connection processing.
call return setting means for storing the calling DTE in the call return destination DTE memory area when detecting that the calling DTE is in use and receiving a call return setting request from the calling DTE; Check the destination DTE memory area and return to the destination DTE.
If there is memory of the call return destination DTE and communication end DT
and call return connection means for connecting the communication path that called E.

〔Example〕

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

FIG. 1 is a block diagram showing one embodiment of the present invention, FIG. 2 is a flowchart showing an example of the main operation procedure of call return setting according to FIG. 1, and FIG. 3 is a main operation of call return connection according to FIG. 1. It is a flowchart which shows an example of a procedure.

In FIG. 1, a data exchange that accommodates and connects data terminal equipment (hereinafter referred to as DTE) 10 numbered 1, 2, . Storage device 40. and a connection control device 50, and the storage device 40 includes an empty state area 41 and a call return destination D for each DTE.
The TE area 42 is provided, and the connection control device 50 has a call return setting means 51 and a call return connection means 52, respectively.

The call return destination DTE area 42 of the storage device 40, the call return setting means 51 and the call return connection means 52 of the connection control device 50 are added to the conventional device according to the present invention. The call return destination DTE field 42 stores the calling DTE that requested a call back at the end of the communication for the called DTE that received a call during communication, using a predetermined code such as a subscriber number or a switch accommodation position. It is written by the connection control device 50 and erased when the connection is completed. When the call return setting means 51 receives a call return setting request from a calling DTE encountered while using the called DTE, the connection control device 50 uses the call return setting program and data to set up a call corresponding to the called DTE. The calling DTE code is written in the return destination DTE area 42. The callback connection means 52 is
When the DTE ends the ongoing communication, the connection control device 5
0 reads the call return destination DTE code from the call return destination DTE area 42 by making full use of the call return connection program and data, and calls and connects the call return destination DTE and the communication end DTE.

The operation procedure of the call return setting means 51 will be explained by combining FIG. 2 with FIG. 1 and the case where DTE-A calls DTE-2. The connection control device 50 is DTE-
When a call request is received from A and accepted (step S1), a call request is received from DTE-2 as the connection destination (step S2).
do. Next, the connection control device 50 checks whether the called DTE 2 is air-cold in the air-occupied area of the storage device 40 (step S3),
If it is in use for communication, it transmits in-use information to DTE-A (step S4). When receiving the in-use information, the caller who desires callback sends a predetermined callback setting request using, for example, a dial code, so that the callback setting means 51 receives (
Step S5) and the call return destination DT of DTE number 2 of the called DTE
Write and store the DTE code A of the calling DTE in the E area 42 (
Step S6) and the procedure ends. In step S3, DTE・
If No. 2 is empty, the connection control device 50 executes a normal connection (step S7). If no call return setting request is received in step S5, the calling DTE-A is disconnected (step S5) and the procedure ends.

Next, with reference to FIG. 3 and FIG. 1, the operation procedure of the call return connection means 52 is explained to the calling destination DTE 2 during communication in accordance with the procedure of FIG.
A case where TE-A is stored will be explained. Detects that the communicating DTE-2 has ended communication (Step 5ll)
The connection control device 50 checks the call return destination DTE area 42 of the storage device 40 using the call return connection means 52 (step 512).
, retrieves and calls the stored call return destination DTE-A (step 813). The call return connection means 52 is a call or TE-A.
After receiving the response signal (step 514), the called DTE 2 that has finished communication is called (step 515).
Upon reception of the response signal of DTE-2 (step 816), the communication path between DTE-2 and DTE-A is connected (step 517), and the procedure ends. If there is no delayed destination DTE in step 12,
The status of DTE-2 that has terminated communication is restored (step 5).
18) Do.

The call-back setting means and the call-back connection means are normally executed by a central processing unit as a connection control device by making full use of the call-back setting program and the call-back connection program in the main storage device, respectively.

〔Effect of the invention〕

As explained above, in the present invention, a data exchange that accommodates and connects a data terminal device stores a calling DTE that received an incoming call during communication and requested a call return setting, and a called DTE that is currently communicating Since both DTEs are configured to be connected by a callback connection when the call is terminated, when the caller finds out that the connected party is currently communicating, he or she can automatically receive a callback from the data exchange by requesting a callback setting. , is connected to the called DTE, which has the effect of improving operational services.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention, FIG. 2 is a flowchart showing an example of the main operation procedure of call return setting according to FIG. 1, and FIG. 3 is a main operation of call return connection according to FIG. 1. It is a flowchart showing an example of the procedure. 10... Data terminal equipment (DTE>, 40... Storage device, 41... Vacant state area, 42... Call return destination DT
E area, 50... connection control device, 51... call return setting means, 52... call return connection means. Agent Patent Attorney Susumu Uchihara receives 1st 2nd TI! J

Claims (1)

[Claims] In a connection control method for a data exchange that accommodates and connects data terminal equipment (hereinafter referred to as DTE), the data exchange
Each accommodated DTE has a call return destination DTE memory area that stores the calling DTE that received a call during communication and requested call return settings as the call return destination DTE, and a call return destination DTE memory area that stores the calling DTE that requested call return settings as the call return destination DTE, and detects that the called DTE is in use during connection processing. and a call return setting means for storing the calling DTE in the call return destination DTE memory area when receiving a call return setting request from the calling DTE, and checking the call return destination DTE memory area of the communication terminating DTE when the communication is completed. 1. A connection control system for a data exchange, comprising: a call return connection means for connecting a communication path that called a call return destination DTE and a communication termination DTE when the call return destination DTE is stored.