JPS6352540A - Packet composing and decomposing device - Google Patents

Abstract

PURPOSE:To increase the flexibility of the utilization of a direct call service by providing a program called a direct call setting change task in a packet composing/decomposing device PAD. CONSTITUTION:When a signal from a general terminal equipment NPT is inputted to the PAD, the content of a format is checked and if the format is not a correct format in accordance with a predetermined procedure, a reply of rejection is sent to the NPT. When affirmative, after direct call address setting/change is applied, the reply representing the reception of the request of the NPT is sent to the NPT.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is applicable to general applications (non-packet ter
A packet assembly and disassembly device (packet
et assemblydisasseoxbly f
ability (hereinafter abbreviated as PAD).

[Conventional technology]

FIG. 3 is a block diagram showing an example of the configuration of a packet switching network, in which (1a) and (1n) are NPT
, (2a) and (2n) are NPT and PAD respectively
(3) is PAL), (4) is PA
The network side line connecting D and the packet switching network, (10) is the packet switching network, and (lla) and (llb) are packet terminals (hereinafter abbreviated as PT), respectively.

FIG. 4 is a block diagram showing parts related to the PAD shown in FIG. 3, in which (5) is the PAi address, (6) is the direct call address storage section, 171 is the network side interface section, and (8) is the direct call address storage section. (9) is a management control section, and (9) is an input/output section.

Since the operation of the apparatus shown in FIGS. 3 and 4 is well known, a general explanation thereof will be omitted, and the operation of the direct call address storage unit (6) related to the present invention will be explained. 0] do.

One of the services that a packet switching network can provide is a direct call. This is a service in which a terminal connects to a pre-registered partner station by displaying an outgoing call. Therefore, the direct call address storage section (6) stores, for each terminal connected to the PAD 131, the address of the partner station to which the terminal connects by direct call.

The destination station address for direct calls of NPT (la) is stored in the part marked for 1a of the direct call address storage section (6), and its contents are
a) Assume that the address is .

If you want to correct this, from the input section (9) to the management section 1# section (
8) to the part marked for 1a in (6).
Write the address of a). In this state, NPT(1
When a) makes a call display, the PAD unit (5) detects this, reads the contents of the direct call address storage unit (6) for 1a, learns the address of the other station P'r (lla), A packet is organized using this address as the destination address, and a call is made using this address.

Also, when the contents of the portion 1a of the direct call address storage section (6) can be transferred to the address of PT (II'o), this is done by inputting from the input/output section (9).

[Problem that the invention seeks to solve]

With conventional PAD, the direct call address setting is P
Since it is configured to be performed only from the input/output unit attached to the AD, for example, when the NPT and PAD are placed side by side, or when the NPT operator and the PAD
If the operators are different, the NPT must request the PAD operator to set or change the direct call address from the input/output section, which is a cumbersome procedure.

This invention was made to solve the above-mentioned problems.
The aim is to obtain 't' (PAL) which can be done from PT.

Measures for Solving Problem c] In this invention, a program is provided in the PAD to perform a direct call setting change task, and a request is issued from the NFr according to a procedure agreed upon in advance between the NPT and the PAD. At that time, PAL) started the above program and changed the contents of the direct call address storage (6) related to the NPT in accordance with the NPT C1 request.

[Effect]

Since the direct call address can be set and changed directly from NPT, the flexibility of the direct call service has increased.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment 11 of this invention.
In FIG. 1, the same reference numerals as in FIG. 4 indicate the priest part, and (12) is the direct call setting task. Figure 2 shows the direct call setting change task (12)
In the flowchart showing the operation of (21) to (26),
indicates each program step.

A procedure for activating the direct call setting change task (12) is arranged in advance between the NPT and PAf. This procedure (well, it is started by turning the 1g line up signal specially provided or sending out a signal with a special bit bang, and then following this procedure, a signal in a predetermined format is sent out.

When a signal from the NPT is input to the PAD, the PAD determines in step (21) that if the signal is not related to a direct call, it activates the PAL unit in step (22). The following operations are similar to those of the conventional device.

If the determination in step (21) is YIII8, the contents of the format are checked in step (23), and if the format is not correct according to the hand pillows added in advance, step (24) is entered and a rejection response is sent to the NPT. If the determination in step (23) is 'I'es,
After entering step (25) and setting and changing the direct call address, a response is sent to the NPT indicating that the request of the NPT has been accepted in step (2b).

〔Effect of the invention〕

As described above, according to the present invention, a direct call setting change task is provided in the PAD, this task is started from the NPT, and the part related to the NPT of the contents of the direct call address KrM section can be set/changed. Therefore, the flexibility of using the direct call service can be increased.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a flowchart showing the operation of the direct call setting change task in diagram M1, FIG. 3 is a block diagram showing an example of the configuration of a packet switching network, FIG. 4 is a block diagram showing a conventional PAD. (la) and (in) are respectively NPT and 13+ is PAf
), +51 is P, 0 part, (6) is direct control address storage part, (7) is network side interface part, (
8) is a management control unit, (9) is an input/output unit, (10) is a packet switching network, (lla) and (llb) are PTs, respectively.
(12) is a direct call setting change task. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Claims] In a packet assembly and disassembly device that connects general terminals (non-packet terminals, NPT) to a packet switching network, the address of the partner station to which the terminal connects by direct call to each of the connected general terminals. A direct call address storage unit that stores the above-mentioned direct call address storage unit decodes a request signal input from each connected general terminal according to a predetermined procedure, and changes the contents of the direct call address storage unit according to the decoded request signal. A packet assembly and disassembly device comprising: a direct call setting change task;