JPH06284204A - Electronic exchange - Google Patents

Abstract

PURPOSE:To improve the simplicity by using control information other than dial information from a caller terminal equipment or a trunk line network so as to discriminate an attribute of a line of a trunk line network to be connected thereby relieving trouble of dialing. CONSTITUTION:After an ISDN terminal equipment 3 is hooked off and a dial tone is listened to, a line dial specific number '0' and a connection destination number are dialed. Thus, the ISDN terminal equipment 3 gives a message comprising a setup representing dialing, a transfer capability, a called address, a caller address and a connection destination number to a trunk control circuit 8 via an ISDN terminal equipment control circuit 6b and an extension control circuit 7 according to an ISDN protocol. The terminal equipment 3 sets a speech capability as the transfer capability in the case of a voice call, sets an audio capability as the transfer capability in the case of a voice band data call, and sets an un-list capability as the transfer capability in the case of a 64Kbps data call. A control circuit 8 analyzes the received message and recognizes a call to ISDN line groups 5,... when the un-list is set to the transfer capability and connects an idle line and the terminal equipment 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to, for example, a standard telephone terminal and an analog line group, or an ISDN terminal and an ISDN.
The present invention relates to an electronic exchange that connects lines and the like.

[0002]

2. Description of the Related Art In recent years, as an electronic exchange such as a private branch exchange, not only is a standard telephone terminal connected to an analog line as an analog communication network, but also a standard telephone terminal or a digital terminal (ISDN terminal) such as a fax (G4).
And an ISDN line (a comprehensive service digital network) as a digital communication network have been developed.

In this case, when making a trunk call from a terminal, a trunk call special number is dialed to notify the electronic exchange of the call request. At this time, since a plurality of trunk lines, that is, analog lines and ISDN lines are mixed, a plurality of special numbers are prepared to distinguish the lines to be captured (connected).

In such a case, since the trunk line to be used is uniquely determined by the special number dialed by the calling side, a trunk having an attribute different from that of the calling side terminal may be selected.

In this case, in order to avoid connection between lines having different attributes, the attributes of both the calling terminal and the trunk are registered in advance as construction data for the exchange, and those data are read out at the time of selection so that both can be read. Whether or not the connection is possible is determined from the attribute of, and if it is not possible, the method of selecting again is adopted.

However, if the attributes change for each call (I
Since the SDN transmission capacity etc.) and line-independent attributes cannot be used for connection judgment based on the above construction data, in such a case, the caller specifies a connectable trunk to make a call. Is needed.

For this reason, the caller must always be aware of the call type when making a call, and must use a special number for each call even when making a call from the same terminal. In addition, at this time, the caller must have knowledge of which line can be connected and which special number should be used for that, depending on the call type and the calling terminal type, which is very simple. It was lacking.

[0008]

According to the present invention, as described above, the user must use a special number corresponding to the terminal he or she wants to use and the attribute of each call, which imposes a considerable burden on the user. It eliminates the disadvantage of being extremely inconvenient, and the terminal that the user wants to use,
It is possible to operate without paying attention to the attributes of each call, that is, without using a special number, the user's burden can be eliminated, the complexity of making a call can be reduced, and the convenience can be increased. The purpose is to provide an electronic exchange.

[0009]

In the electronic exchange of the present invention, a calling side terminal such as a standard telephone terminal or an ISDN terminal is used as one of a plurality of trunk line networks having different line attributes such as an analog line group and an ISDN line group. When connecting to a trunk line network or connecting a trunk line network on the calling side to another trunk line network, the trunk line network to be connected is controlled by control information other than dial information from the terminal on the calling side or the trunk line network. It is composed of a judging means for judging the line attribute, and a line connecting means for making a line connection between the trunk line network having the line attribute judged by the judging means and the terminal or the trunk line network on the originating side.

[0010]

According to the present invention, in the above-mentioned structure, a terminal on the calling side such as a standard telephone terminal or an ISDN terminal is a trunk line of a plurality of trunk line networks having different line attributes such as an analog line group and an ISDN line group. Connect to the net,
Alternatively, in the case of connecting a trunk line network on the calling side to another trunk line network, the line attributes of the trunk line network to be connected are judged by the control information other than dial information from the terminal on the calling side or the trunk line network. A line connection is made between the trunk line network having the specified line attributes and the terminal or trunk line network on the originating side.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows an example of the configuration of an electronic exchange system according to the present invention. That is, 1 is the switch body,
2, ... are standard telephone terminals connected to the exchange main body 1, 3,
... are ISDN terminals (for example, G4 type facsimiles) connected to the exchange main body 1, 4, ... are analog line groups as communication lines (trunk) connected to the exchange main body 1, 5, ... are connected to the exchange main body 1 It is an ISDN line group as an established communication line (trunk).

The exchange main body 1 includes standard telephone terminals 2, ...
A standard telephone terminal control circuit 6a, an ISDN terminal control circuit 6b, a standard telephone terminal control circuit 6a, an extension control circuit 7 for controlling the ISDN terminal control circuit 6b, and a trunk control circuit 8, which are connected to the ISDN terminals 3 ,. It is composed of an analog trunk control circuit 10a and an ISDN trunk control circuit 10b which are connected to the database unit 9 and each of the analog line group 4, ..., ISDN line group 5 ,.

The database unit 9 is registered with construction data and the like required during processing.

Next, the operation in such a configuration will be described. First, the call origination operation from the standard telephone terminal 2 will be described with reference to the sequence chart shown in FIG.

That is, the standard telephone terminal 2 is used by the user.
Is off-hook, and after listening to the dial tone, the line transmission special number "0" and the connection destination number "XXXXX" are dialed. This line transmission special number "0" and the connection number "XXXXX"
“X” is supplied to the trunk control circuit 8 via the standard telephone terminal control circuit 6a and the extension control circuit 7.

If another signal is not supplied within a predetermined time after the dial is made, the trunk control circuit 8 selects the analog line group 4, ..., Within the analog line group 4 ,. And the standard telephone terminal 2 is connected.

If the user hooks the standard telephone terminal 2 before a predetermined time has passed after the dialing, the signal is supplied to the trunk control circuit 8. As a result, the standard telephone terminal control circuit 6a determines the supply of other data.

Then, after the user hears the dial tone following the hooking, the information element number "1" and the called subaddress "XXXXX" indicating the ISDN.
Is dialed. The information element number "1" and the destination subaddress "XXXXX" are supplied to the standard telephone terminal control circuit 6a.

If the user hooks the standard telephone terminal 2 before a predetermined time has elapsed after the dialing, the signal is supplied to the standard telephone terminal control circuit 6a. As a result, the standard telephone terminal control circuit 6a determines the supply of other data.

Then, the user dials the information element number "2" and the calling ID number "XXXXXX" after the dial tone is heard following the hooking.
The information element number "2" and the calling ID number "XXXXX" are
It is supplied to the standard telephone terminal control circuit 6a.

Then, the user dials the ending special number "#" after hooking. The ending special number "#" is supplied to the standard telephone terminal control circuit 6a.

As a result, the standard telephone terminal control circuit 6a
Is the standard telephone terminal 2 when the end special number "#" is supplied or when a predetermined time elapses after the dial is made.
It outputs the data received from the trunk control circuit 8 via the extension control circuit 7. Then, the trunk control circuit 8
Analyzes the supplied data and recognizes the call to ISDN line group 5, ... if the ISDN network protocol specific parameters (destination subaddress, etc.) are set in the data, and within ISDN line group 5, ... And the standard telephone terminal 2 is connected.

Next, the transmission operation from the ISDN terminal 3 will be described with reference to the sequence chart shown in FIG.

That is, after the ISDN terminal 3 is off-hook and the dial tone is heard, the line calling special number "0"
Then, the connection number "XXXXX" is dialed. As a result, according to the ISDN protocol from the ISDN terminal 3,
The message consisting of the setup indicating transmission, transmission capability, destination address, source address, and connected number
It is supplied to the trunk control circuit 8 via the DN terminal control circuit 6b and the extension control circuit 7.

In this case, when the ISDN terminal 3 makes a voice call, the speech is set as the transmission capacity, and in the voice band data call, the audio is set as the transmission capacity.
When a Kbps data call is made, an unlist is set as the transfer capability.

Then, the trunk control circuit 8 analyzes the received message, and when the transmission capability in the message is set to unlist, recognizes the call to the ISDN line group 5, ..., And the ISDN line group 5 , The idle line in the connection is connected to the ISDN terminal 3.

Further, the trunk control circuit 8 analyzes the received message, and if the transmission capability in the message is set to speech or audio, recognizes the call to the analog line group 4, ... Group 4,
The idle line in the ... Is connected to the ISDN terminal 3.

As described above, regardless of the call type or the like, the caller dials the same trunk call special number dial "0" to select the trunk line that matches each attribute and to make the call. ing.

Therefore, even if the caller performs the same call operation regardless of the caller terminal type or the call type, a suitable trunk line is automatically selected, and the complexity of the call can be reduced, which is simple and easy. Can be increased.

Also, when the oscillation side is a trunk line, trunk transmission can be performed in the same manner.

[0032]

As described above in detail, according to the present invention,
Users can operate without being aware of the terminal they want to use and the attributes of each call, that is, without using a special number, the burden on the user can be eliminated, and the complexity of making a call can be reduced, It is possible to provide an electronic exchange that can increase convenience.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a main part of an electronic exchange according to an embodiment of the present invention.

FIG. 2 is a sequence chart for explaining a calling operation from a standard telephone terminal.

FIG. 3 is a sequence chart for explaining a transmission operation from an ISDN terminal.

[Explanation of symbols]

1 ... switch body, 2 ... standard telephone terminal, 3 ... ISDN
Terminals, 4 ... Analog line group, 5 ... ISDN line group,
6a ... Standard telephone terminal control circuit, 6b ... ISDN terminal control circuit, 7 ... Extension control circuit, 8 ... Trunk control circuit, 9 ...
Database unit, 10a ... Analog trunk control circuit,
10b ... ISDN trunk control circuit.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masafumi Fukushima 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation

Claims (1)

[Claims] 1. A calling side terminal such as a standard telephone terminal or an ISDN terminal is connected to one trunk line network of a plurality of trunk line networks having different line attributes such as an analog line group or an ISDN line group, or a calling side. In the electronic exchange that connects the trunk line network to another trunk line network, a judgment means for judging the line attribute of the trunk line network to be connected by the control information other than dial information from the calling terminal or the trunk line network, An electronic exchange comprising: a trunk connection network having a line attribute determined by the determination means; and a line connection means for connecting a line to a terminal or a trunk line network on the originating side.