JPS63304792A - Terminal control system - Google Patents

Abstract

PURPOSE:To facilitate the addition and change of terminal service, a function and the like by setting a basic connection control task and a connection service control task independent. CONSTITUTION:A task for executing a connecting action with a digital network is separated as the basic connection control task 12, the connection service control task 13 which controls plural basic connection control tasks 12 for corresponding to connection service from a terminal to independent. At the time of adding and changing connection service, only the part of the connection service control task 13 needs to be added or changed, and the part of the basic connection control task 12 does not need to be corrected. Thus, an increase in design manday can be set to minimum.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a terminal control system, and in particular to a service integrated digital system that handles various telephone and non-telephone services in a unified manner.
1 (hereinafter referred to as 15DN).

[Conventional technology]

Conventionally, this type of terminal control system has a terminal control program corresponding to connection services from the terminal, and a plurality of connection operations with a digital network are performed in accordance with this program.

A conventional example will be explained with reference to FIGS. 3 and 4.

FIG. 3 is a block diagram showing a conventional example, and FIG. 4 is a flowchart showing an example of the main operation procedure in FIG.

In FIG. 3, a terminal control device 30 has a terminal hardware control section 31 and a terminal control task section 32, and utilizes a terminal control program 36 and common data 38 included in a storage device 35 to control a terminal (not shown). control. I
The SDN switching device 22 is a switching device that realizes switching control using an interface method with ISDN, and is connected to the terminals by the terminal line 21 via ink-face circuits 23 and 24.

Next, using Figure 4 together, we will explain the operation when a hooking service request is received from a terminal.In this example, the interface format between the terminal and the digital network is C
An example of a terminal control method based on the D channel protocol layer 3 (CCITT recommendation Q931) defined by the ISDN user network interface standardized by CITT will be described. While the terminal is talking to a partner terminal via the ISDN switching device 22 (the CR number is 1, which is the call identification number in CCITT recommendation Q931), the terminal hardware control unit 31 of the terminal control device 30 issues a hooking service request event. When the event is detected (operation procedure 51) and the event is identified as a hooking event (operation procedure 52), the terminal control program 36 in the storage device 35
Operation procedure 53) calls the hooking processing program from 53), and controls the terminal according to this program (53).
Operation procedure 54). Here, a hold request message is sent to the ISDN exchange device 22 for the CR (CR number 1) in use (operation procedure 55), and a new CR (CR number 1) is sent (operation procedure 55).
Send a call request message using number 2) (operation step 56)
to end the terminal control task.

In this way, conventionally, a plurality of CRs have been controlled by a terminal control program corresponding to the connection service from the terminal.

[Problem that the invention seeks to solve]

In the conventional terminal control method described above, a terminal control program is provided for each connection service from the terminal, and the terminal status is checked for each connection service and basic connection operations with the digital network are performed. A drawback is that when adding or changing services, functions, etc., the program must be completely modified or added.

[Means for solving problems]

The terminal control method of the present invention is a terminal control method for controlling terminals accommodated in a service integrated digital network that handles various telephone and non-telephone services in a unified manner, in which the terminal side supports basic connection functions with the digital network. a basic connection control task that is operated and processed by a basic connection control program that performs processing; and a connection service control task that is operated and processed by a connection service control program that controls a plurality of the basic connection control tasks in response to connection services from the terminal. have.

〔Example〕

Next, the present invention will be explained using FIGS. 1 and 2.

FIG. 1 is a block diagram showing an embodiment of the terminal control method of the present invention.

The terminal control bag r1110 includes the terminal hardware control unit 11,
Basic connection control task section 12. A basic connection control program 16. which has a connection service control task unit 13 and which is included in the storage device 15. The terminal is controlled by making full use of the connection service control program 17 and common data 18. The basic connection control task unit 1-2 is a unit that performs connection operations with the digital network, and performs terminal-side processing such as calling, receiving, answering, and disconnecting, and also interfaces with the ISDN network as necessary. Sends and receives messages specified in . In addition, the I SDN exchange device 22 is
? This is a switching device that realizes switching control using an I interface method, and the terminal is an interface circuit 23.2.
4 and is connected by a terminal line 21.

Next, the operation of this embodiment will be described with reference to FIG. 2, which is a flowchart showing an example of the main operation procedure in FIG. 1.

FIG. 2(a) shows the operation procedure of the connection service control task when the terminal detects a hooking service request event from the terminal during a call via the ISDN switching device 22, and FIG. 2(b) and (c) shows the operating procedure of the basic connection control task which is started from the connection service control task and performs a connection operation with the digital network.

In FIG. 2(a), when the terminal hardware control unit 11 of the terminal control device 10 detects a hooking service request event (operation procedure 61) and the connection service control task unit 12 of the terminal control device 10 is activated, The connection service control program 17 of the storage device 15 is called to analyze the received information and confirm that it is hooking (operation step 62). Next, call the hooking processing program,
The state of the terminal is analyzed according to the called hooking processing program. Then, the CR (CR number 1)
) to start the basic connection control task that performs the connection operation with the digital network of The connection control task is started (step 64), a call request message is sent, and the connection service control task is ended.

Next, in FIG. 2(b), the terminal control task unit 12 is activated in operation procedure 62 (see FIG. 2(a));
calls the basic connection control program 16 of the storage device 15, confirms that the message is a hold request message (operation step 65), starts the hold request message processing program (operation step 66), and sends the hold request message to the network side. Create, send, and end the basic connection control task.

Similarly, in FIG. 2(C), a call request message is created and sent to the network side, and the basic control task is completed.

As described above, in this embodiment, the connection service control task controls the terminal by activating a plurality of basic connection control tasks.

〔Effect of the invention〕

As explained above, according to the terminal control method of the present invention, a task for performing a connection operation with a digital network is separated as a basic connection control task, and a plurality of basic connection control tasks are controlled in response to connection services from a terminal. By making the service control task independent, when adding or changing a connection service, you only need to add or change the connection service control task part, and the basic connection control task part does not need to be modified. This has the effect of minimizing the increase in man-hours.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the terminal control method of the present invention; FIGS. 2(a), (b), and (c) are flow charts showing an example of the main operating procedures in FIG. 1; FIG. 4 is a block diagram showing an example of the conventional system, and FIG. 4 is a flowchart showing an example of the main operation procedure in FIG. 3. 10... Terminal control device, 11... Terminal hardware control unit, 12... Basic connection control task unit, 13...
Connection service control task unit, 15...Storage device, 16
... Basic connection control program, 17... Connection service control program, 18... Common data, 21...
Terminal line, 22...I SDN switching equipment, 23.24
...Interface circuit.ゝ・□ IiFA foil 2riJ(a>'r32 Tn(Iy) 2nd stitch(c>
Figure 3 S] even

Claims (1)

[Claims] In a terminal control method for controlling a terminal accommodated in a service integrated digital network that handles various telephone and non-telephone services in a unified manner, the terminal side includes a basic connection control program that performs processing corresponding to a basic connection function with the digital network. and a connection service control task that is operated and processed by a connection service control program that controls a plurality of the basic connection control tasks in response to connection services from the terminal. method.