JP3142040B2 - ISDN terminal equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an IS that is used in financial institutions such as banks and securities companies, or in police and railroads, which have a plurality of branches and need to issue commands to these branches all at once.
It relates to a DN terminal device .

[0002]

2. Description of the Related Art Conventionally, this type of command system uses an analog dedicated line to connect a head office (Tokyo) and a base semi-main office (central branches such as Osaka and Nagoya) via a line control device. The main and semi-head offices are connected to branches in the city and suburban areas using dedicated analog lines. And to the branches around the head office at the same time. The line control device on the semi-main store side detects a call to the dedicated line assigned for the command, switches the terminal used for general incoming call to the command call, and further transmits to a branch near the semi-main store. The transmitting side sequentially detects the responses from the stations that have received the calls and displays the response of each branch on the command console. The sender determines the start of the command based on the display and issues a command to the branch.

[0003]

However, in the conventional simultaneous command system as described above, the use of an analog dedicated line is indispensable in order to prevent erroneous incoming calls. However, an analog dedicated line must be prepared for realizing the command, which has increased the cost.

[0004] The present invention is intended to solve the above problems, to distinguish the type of incoming call, by causing the switching of the general inbound and command arrives, a no erroneous call inexpensive ISD
An object is to provide N terminal devices .

[0005]

SUMMARY OF THE INVENTION The present invention provides an ISDN basic
An ISDN terminal connected using an interface
Communication means for making a voice call, and the ISDN basic
Interface is detected, the sub address is detected.
Incoming call analyzing means for analyzing the type of incoming call;
When the means determines that it is a general incoming call, the general incoming call processing
Receiving means for performing a special incoming call
When it is determined, it responds automatically and changes the response code.
Automatic answering means for returning, and answering the incoming call by the automatic answering means.
Answer the message until you receive the information to start the call.
And the ISDN terminal is in a standby state.
And a call hold means and characterized by Rukoto.

[0006] Further, the present invention provides the ISDN terminal,
During a general call on the ISDN basic interface,
When the automatic answering means recognizes an incoming call,
Call of ISDN basic interface is forcibly disconnected
Or put the call on hold and answer by the call waiting means.
It includes a response means and said Rukoto.

[0007]

According to the present invention, an ISDN line is connected to a public network,
A terminal using an ISDN basic interface is used as a terminal, a command identifier is added at the time of command transmission, and the ISDN terminal is simultaneously transmitted and the ISDN terminal on the receiving side recognizes that the command is received by detecting the command identifier. To answer, so you can distinguish between general incoming and command incoming,
Call charges are only imposed during a command transmission call, so running costs can be kept low for users who have a low frequency of command transmissions. It is possible to prevent an erroneous incoming call.

Further, according to the present invention, it is possible to forcibly switch to the command call even during a general call when the command reception is detected by the command identifier sent from the caller on the receiving side. Become.

[0009]

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

FIG. 1 shows an ISDN terminal device according to the present invention.
FIG. 6 is a relay system diagram to which a simultaneous command method according to the present invention is applied.

In FIG. 1, 1 is a head office line controller (LCU1), and 2 is a first semi-head office line controller (LCC1).
U2) and 3 are semi-head office side control units (LCU3), and an ISDN and an I interface trunk (IT) are provided between the head office side line control device 1 and the first sub head office side line control device 2.
C) The same ISDN and I-interface trunk (ITC) 4 are connected via 4a and 4b, and between the head office line controller 1 and the second semi-main office line controller 3 as well.
a, 4b.

The head office line controller 1 includes a digital line circuit (IBDL) using an ISDN interface.
The command system 6 via the IN) 5 is connected and further connected to ISDN terminal 8 ₁ to 8 _n which corresponds to the premises A through I interface line circuit 7 ₁ to _7-n. A plurality of ISDN terminals 10 ₁ to 10 _n corresponding to the local / extra-branch branch A are connected to the head office line controller 1 via a primary interface trunk (PRI) 9 and an ISDN.

A plurality of ISDN terminals 12 corresponding to the premises B are connected to the first semi-main branch line controller 2 via a plurality of I interface line circuits (ILC) 11,
Is further connected to ISDN terminal 14 ₁ to 14 _n via the ISDN corresponds to the city / area branch B having primary rate interface trunk (PRI) 13 and primary rate interface (23B + D) and basic interface (2B + D) ing.

A plurality of ISDN terminals 16 corresponding to the premises C are connected to the second semi-main branch line controller 3 via a plurality of I interface line circuits (ILCs) 15.
In addition, an IS corresponding to a local / inter-city branch C via a primary rate interface trunk (PRI) 17 and an ISDN having a primary rate interface and a basic interface
DN terminal 18 ₁ ~ 18 _n are connected.

FIG. 2 is a configuration diagram of the ISDN terminal.

In FIG. 2, an ISDN terminal includes an I-interface LSI (I-LSI) 20 and relay switches L on channels B1 and B2 of the I-interface LSI 20.
1, an encoding / decoding circuit (hereinafter abbreviated as CODEC), ISD connected via L2, MOD1, MOD2
A main controller (MPU) 22 for controlling the entire N terminal; a driver 23 controlled by the main controller 22 for switching connection of various relay switches;
0, a serial-parallel converter (S / P converter) 24 connected via a relay switch L 1 and a MOD 1 between a B1 channel of the master controller 22 and an I-interface LSI 2
0, a serial-parallel converter (S / P converter) 26, a CODE C 21 and a terminal 28 connected via a relay switch L 2 and a MOD 2 between the B2 channel 0 and the main controller 22.
A network terminating device (NW) 27 connects between them via a relay switch RG, a ringer generating unit (TG1) 29 that generates a ringer sound when an incoming call is received, and a message is sent to the recipient when a command call is started when a command is answered. The standby sound generation unit (TG2) 30 is connected to the main control device 22 via a display control circuit 31, and displays a data display during data communication and displays the state of arrival and departure. The main control 22 is connected via a key control circuit 33. And a key input device 34 for inputting dials and function keys.

Next, the operation of the present embodiment configured as described above will be described.

When the command transmission button of the command console 6 is pressed to perform simultaneous command transmission, a specific code (indicating that the command transmission is to be transmitted from the command console 6 to the head office line control device 1 to the other party). Command identifier) as a subaddress. Upon receiving this transmission code, the head office line controller 1 sends the ISDN terminals 8 ₁ to 8 _n of the premises A of the command destination and the ISDN terminals of the city / extra-branch branch A registered in the head office line controller 1 in advance. The sub-addresses are added to 10 ₁ to 10 _n and the semi-main branch line controllers 2 and 3 to perform simultaneous transmission.

The quasi-head office line controllers 2 and 3 detect that a code indicating command transmission is added to the sub-address, so that each of the premises B and C is controlled.
N ISDN terminals 12 and 16 and n ISDN terminals 14 _{1 to} 14 _n and 18 _{1 of} local / extra-branch branches B and C
By adding a sub-address perform the dial against ~18 _n.

In the ISDN terminals at the premises and the local / international branch, the relay switch RG is switched to the ringer sound generating unit 29 side by detecting the command code which is the sub address from the D channel separating unit of the I interface LSI 20 shown in FIG. , A ring tone is sounded, a response code is returned to the line controller in response to the incoming call, and information indicating that there is a response is returned to the command board 6 as individual terminal information. After that, the relay switch RG is switched to the network terminating device 27 side, the relay switch CH is connected, and until the caller starts the command,
A message is sent from the standby sound generation unit 30, and the B ₁ and B ₂ channels containing the command are relayed to the relay switches L1 and L2.
2, S / P converters 24 and 25 according to MOD1 and MOD2
To the main controller 22 so that data can be recognized.

Here, even if a response is made, a call is not immediately made, and a message is sent to a plurality of ISs in each branch.
This is because a DN terminal is connected and it is necessary to wait for a response from another branch terminal. In addition, the command console 6 that has returned the response has a configuration in which the branch terminal that has responded and the branch terminal that has not responded can be distinguished by display or the like. By pressing the start button, a command start code is sent to the response destination. The response destination ISDN terminal turns off the relay switch CH by recognizing the command start code on the B channel.
Then, the B channel connected to the S / P converters 24 and 25 is changed to relay switches L1 and L2 and MOD1 and MO2.
Switching of D2 starts a switching command call to the CODEC 21 side.

On the other hand, for the branches that have not responded, the branches that have not responded are stored in the respective line controllers, and the re-command button provided on the command table 6 is pressed. By using the sub-address as the code of the re-command, a call is transmitted to the unanswered branch terminal in the same procedure as in the case of sending the above-mentioned simultaneous command code, a command call is performed, and the command call to all branches is completed.

Here, the simultaneous command is often of an urgent content, but when used, it is desirable that the branch side immediately responds and does not require a re-command as much as possible, and the command is completed at once. Therefore, if the ISDN terminals in the premises and the branch were in use for another general call when the command was issued, the ISDN
When the terminal detects the command transmission code, the voice of the B channel used during the call and the message of the standby sound generating unit 30 are mixed and flown until the command start of the command table 6 is pressed.

In this way, the two people who are talking are informed in advance that the commanded call will be started, and when the command start code is detected, the channel being talked on is forcibly disconnected and the channel on the command side is disconnected. By switching to, command call is enabled.

When data communication is performed using the ISDN terminal, one of the B channels is connected to the S / P converter, and in this state, the command transmission channel is changed to the network termination while the data communication is performed. By connecting to the device 27 side, a command call can be made.

Also, in order to always be able to receive a command transmission, if one of the B channels is in use, even if there is an incoming call on the other B channel, there is no code indicating the command in the subaddress. Check and reject the call.

As described above, according to this embodiment, the ISDN
By adding a command transmission code to the sub-address using the circuit network and preparing the ISDN terminal at the partner terminal, there is no erroneous reception of the command transmission that was conventionally performed on the analog dedicated line due to the problem of erroneous reception. Can use the office line, and furthermore, a data simultaneous command for transmitting the same data to each branch other than the voice can be made.

[0028]

As described above, according to the present invention, by issuing a command using the public network, a call charge is imposed only during the command transmission call. In contrast, it is possible to provide an ISDN terminal device employing a simultaneous command system which is very advantageous in terms of running costs.

Also, in the present invention, since the command sending side can add a subaddress to the selection signal and use this as a command identifier by using a public digital network, the receiving side can receive a command incoming call or a general incoming call. Can be determined, and erroneous incoming calls due to erroneous outgoing calls by outsiders, which has been a problem in the conventional command system using the public network, can be prevented. Therefore, it is possible to prevent a kind of trouble in which the user is delayed in business due to a wrong telephone call. Further, since the receiving side can detect the transmission of the command, it is possible to forcibly switch to the command side when the command is received during a general call.

Further, in the present invention, the use of a digital network is advantageous in terms of speech quality, which is a problem in a conventional analog network, and can be expected to shorten the connection time of the entire commanded speech.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a relay system to which an ISDN terminal device of the present invention is applied.

FIG. 2 is a configuration diagram of an ISDN terminal in the present embodiment.

[Description of Signs] 1 Head Office Line Controller 2 First Semi-Head Office Line Controller 3 Second Semi-Head Office Line Controller 4a, 4b I Interface Trunk 5 I Interface Digital Line Circuit 6 Command Board 71-7n I interface line circuit 81 to 8n ISDN terminal 9 Primary interface trunk 101 to 10n ISDN terminal 11 I interface line circuit 12 ISDN terminal 13 I interface line circuit 141 to 14n ISDN terminal 15 I interface circuit 16 ISDN terminal 17 Primary interface trunk 181 to 18n ISDN terminal 20 I interface LSI 21 CODEC 22 main controller 23 driver 24 S / P converter 25 S / P converter 26 S / P converter 27 network terminator 28 terminal 29 Gar sound generation unit 30 waiting tone generating unit 31 display control circuit 32 display 33 key control circuit 34 key input device

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04M 3/42 101 H04M 3/42

Claims (2)

(57) [Claims] 1. A connection using an ISDN basic interface.
An ISDN terminal connected to the communication terminal for performing a voice call and detecting an incoming call from the ISDN basic interface.
And incoming call analysis to detect the sub address and analyze the incoming call type
Means when the incoming call analyzing means determines that the call is a general incoming call.
When the incoming call means for performing general incoming call processing and the incoming call analyzing means determines that the incoming call is a special incoming call,
Automatic response means that responds automatically and returns a response code
When and answers the incoming call in the automatic response unit, initiates a call
Send a message to the calling means until information is received
ISDN terminal equipment according to claim Rukoto and a call hold means to the standby state the ISDN terminal. 2. The ISDN terminal further comprises the ISD
N during the general call on the basic interface
When the stage recognizes the incoming call, the ISDN basic during the general call
Forcibly disconnect or hold the interface call
The ISDN terminal device according to claim 1, further comprising a forced response means for responding to said call waiting means .