JPH08331250A - Ins line b channel return connecting system - Google Patents

Abstract

PURPOSE: To make possible the exchange of a telegraphic message with a single host. CONSTITUTION: When performing communication through B channels 51 and 52 existent in a host computer 1 and managed by a communication process 2 and B channels 53 and 54 managed by a communication process 3, its own address and a call incoming discrimination address are set to a TA device 5 corresponding to the B channels in advance. At the time of communication between these communication processes, the call originating side communication process defines its own address and the opposite party side address as INS subscriber number + subaddress. Therefore, after returning from an INS exchange 7, the call incoming B channel is made to be selectable and communication with the call incoming side process is performed. Thus, INS network return communication can be performed by one INS network subscriber's line.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention expands the use of lines in an online system, and relates to an INS (advanced information and communication system) line B channel loopback connection system for the purpose of improving the system testing and operating method. .

[0002]

2. Description of the Related Art Conventionally, when a public line network is used in an online system, a total of two lines, a calling side line and a called side line, are required to be connected to each other via an exchange.

In the public line network INS line used in the online system, one subscriber line can be divided into B channels. For example, INS64 has two B channels, and INS1500 has two B channels.
3 channels can be secured. Although these B channels are on one subscriber line, their operations are independent. By designating a sub-address at the time of calling and receiving calls, the B channel of one line is called and the call is sent via the INS switch. A call can be made to the intended B channel of the same subscriber line, and thereafter, communication can be performed using the B channel and 2 line of one subscriber line.

As a conventional technique, Japanese Patent Laid-Open No. 4-26355 is known.
In the publication No. 6, an automatic interface test is started in which a subscriber circuit control unit that receives a return completion response sends a response message in which information of a B channel usable for a test is set to a switching control unit to start an interface test. A folding method is disclosed.

[0005]

However, the above-mentioned online system has a problem that two subscriber lines are required for communication via the line, and one subscriber line cannot perform return communication of the INS switch.

[0006] Therefore, the object of the present invention is to provide the B of the INS line.
1 using the sub address that can be set for each channel
An object of the present invention is to provide an INS line B channel loopback connection system that enables transmission and reception of a message by a single host depending on the loopback environment of the INS line network in the subscriber line.

[0007]

According to the present invention, the INS
In the line B channel connection system, an INS line B channel loop connection system is obtained in which sub-addresses are used and B channel 2 lines of one subscriber line are loop-connected by an INS switch.

Further, according to the present invention, in the INS line B channel connection system, when communication is performed via the B channel existing in the host computer and managed by the communication process and the B channel managed by the communication process, In the line terminating device, a self address and an incoming call identification address are set in correspondence with the B channel, and at the time of communication between the communication processes, the originating communication process sets the self address and the partner address to the INS subscriber number + subaddress, After returning the INS switch, the incoming B channel can be selected, and the INS line B channel loopback connection system is obtained, which is characterized in that the incoming call process is communicated with.

Further, according to the present invention, in the INS line B channel connection system, there are B channels managed by the communication process existing in the host computer and B channels managed by the communication process, and the INS line is the INS line. It is connected to an exchange and a line terminating device, and the line terminating device is connected to the line multiplexer of the center facility, and the line multiplexer stores its own address for incoming call in the B channel as its function. It has a self-address setting function and an incoming call identification function at the time of an incoming call, and the incoming call identification function provides the subscriber number + subaddress of the calling side when an incoming call is made to the B channel of the line multiplexer from the INS switch. An INS line B-chair having a function of allowing incoming calls only to a specific subscriber number and subaddress registered by checking Le folded connection method can be obtained.

[0010]

According to the INS line B channel loop-back connection system of the present invention, the INS line is used to connect the line B of the line multiplexer.
By setting the self address and the incoming call identification address in the channel, the B channel of one subscriber line and the two lines are
The S exchange enables return communication.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an outline of an INS line B channel loopback connection system according to the present invention.

Referring to FIG. 1, the INS line B channel loopback connection system is a B channel 51, 52 existing in a HOST (host computer) 1 and managed by a communication process 2.
When communicating via the B channels 53 and 54 managed by the communication process 3, the TA device (line multiplexer) 5 is set in advance with its own address and incoming call identification address corresponding to the B channels 51 to 54.

At the time of communication between processes, the originating communication process sets the own address and the other party's address to the INS subscriber number + subaddress so that the incoming B channel can be selected after the INS switch 7 is returned and the incoming process can be performed. Communication is possible.

In this INS line B channel loopback connection system, there are B channels 51 and 52 managed by the communication process 2 existing in the host computer 1 and B channels 53 and 54 managed by the communication process 3, and the INS subscriber line. It has a subscriber number value of 8.

The INS subscriber line 8 connects the INS switch 7 and the line terminating device DSU 6 and is connected to the TA device 5 of the center facility. The TA device 5 has as its function the self-address for incoming calls (subscriber line number + subaddress)
There are a self-address setting function stored in channels 51 to 54 and an incoming call identification function at the time of an incoming call. The incoming call identification function is provided for the INS switch 7 on the B channels 51 to 54 of the TA device 5.
This is a function to check the subscriber number + subaddress of the calling side when there is an incoming call from the caller, and to allow the incoming call only to the specific subscriber number + subaddress registered. For this reason, the B channels 51 to 54 reject the incoming call when there is an unregistered calling party number + subaddress.

The B channel 51 of the TA device 5 has its own address α + subaddress 11 and an incoming call selection address α +.
The B channel 52 has a sub address 31, and the B channel 52 has its own address α + sub address 21 and an incoming call selection address α +.
The B channel 53 has a sub address 41, and the B channel 53 has its own address α + sub address 31 and an incoming call selection address α +.
The B channel 54 has the sub-address 11 and the B-channel 54 has its own address α + the sub-address 41 and the incoming call selection address α +.
It has a sub-address 21.

Reference numeral 4 in FIG. 1 indicates the host computer 1 and TA.
The FNP (network processor) connected to the device 5 is shown.

Now, the B channel (calling B channel) 51 controlled by the communication process 2 is connected to the B channel (calling B channel) 53 controlled by the communication process 3 to perform communication.

In FIG. 2, the calling side address is the calling subscriber number α + subaddress 11 and the called side address is the called subscriber number α + from the B channel 51 controlled by the communication process.
The sub-address 31 is instructed to connect to the INS exchange 7. SETUP message 10 on the INS subscriber line 8
The calling address and the called address are stored in 0 and notified to the INS exchange 7.

IN receiving the SETUP message 100
The S exchange 7 creates a SETUP message 110 for an incoming call from the calling address and the called address of the SETUP message 100, and sends it as a SETUP message 110 to the subscriber line α.

In the SETUP message 110 notified to the TA device 5, its called address is the called subscriber number α +.
Since it is the sub-address 31, the B channel 5 whose subscriber number + sub-address match with the self-address setting function
3 will be notified. At this time, the calling address (calling subscriber number α + subaddress 11) is notified to the B channel 53. A CALL PROC 120 in the figure indicates a calling procedure from the INS exchange 7.

At the same time, for the INS switch 7, the SETU
A P-message arrives to notify the INS switch 7 of an ALERT message 130 from the B-channel (incoming-call B-channel) 53, which informs that the call is in progress. ALERT message 13
0 is sent from the INS exchange 7 to the B channel (calling B channel) 51 as an ALERT message 140 and waits for a connection message (CONN). In addition,
The CALL PROC message 120 in the figure is INS.
The calling procedure from the exchange 7 is shown.

In the B channel 53, it is checked whether the notified calling address matches the calling address information registered by the incoming call identification function. Since the incoming call identification address registered in the B channel 53 is the subscriber number α + sub-address 11 and matches the calling address notified by the SETUP message, the incoming call is permitted and the communication process 2 is notified to the B channel 53. Notification of the incoming identification address check incoming call 150 occurs. At the same time, the CONN message 160 notifying the connection to the B channel 51 is B
The channel 53 notifies the INS switch 7. CON
The INS switch 7 which has received the N message 160 connects the B channel 51 of the subscriber line α and the B channel 53 of the subscriber line α. When the connection is completed, the INS switch 7
Sends a CONN message 170 to the B channel 51 and a CONN ACK message 180 to the B channel 53 to notify the B channel connection.

Thereafter, the B channel 51 with one subscriber number α,
Data can be exchanged at 53.

[0025]

As described above, according to the INS line B channel loop-back connection method of the present invention, two subscriber lines have been conventionally required when communicating via a line in an online system. Using TA
By setting the self-address setting and the incoming call identification address in the B channel of the device, it is possible to make a return call of the INS switch with one subscriber line.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an embodiment of an INS line B channel loopback connection system of the present invention.

FIG. 2 is an operation explanatory diagram of the INS line B channel loopback connection system shown in FIG.

[Explanation of symbols]

 1 HOST (Host Computer) 2, 3 Communication Process 4 FNP 5 TA Device 51, 52, 53, 54 B Channel 6 DSU 7 INS Switch 8 INS Subscriber Line 100, 110 SETUP Message 120 CALL PROC Message 130, 140 ALERT Message 150 Incoming call 160, 170 CONN message 180 CONN ACK message

Claims (3)

[Claims] 1. An INS line B channel loop connection method, wherein a sub address is used in the INS line B channel connection system, and two B channels of one subscriber line are loop-back connected by an INS switch. 2. In the INS line B channel connection method, B existing in the host computer and managed by the communication process
When communicating via a channel and a B channel managed by the communication process, a self-address and an incoming call identification address corresponding to the B channel are set in advance in the line terminating device, and at the time of communication between the communication processes, the communication process on the originating side INS line B channel return connection, characterized in that by setting the own address and the partner address as the INS subscriber number + subaddress, after returning the INS switch, the incoming B channel can be selected and communication with the incoming process is performed. method. 3. In the INS line B channel connection method, B managed by a communication process existing in the host computer
There is a channel and a B channel managed by a communication process, the INS line is connected to an INS switch and a line terminating device, and the line terminating device is connected to a line multiplexer of a center facility. The line multiplexer has, as its functions, a self-address setting function for storing a self-address for an incoming call in the B channel and an incoming call identification function for an incoming call. The incoming call identification function is provided in the B channel of the line multiplexer. When an incoming call is received from the INS switch, it has a function of checking the calling party's subscriber number + subaddress and allowing incoming calls only to a specific registered subscriber number + subaddress. INS line B channel loopback connection method.