JPH05304564A - Call tone output system - Google Patents

Abstract

PURPOSE:To provide a call tone switching system which discriminates whether a caller is an external line caller or an extension caller and sound a call tone used to inform the user differently from the external line and the extension. CONSTITUTION:The ISDN telephone set employing the call tone output system comprising a main control section 101 accommodating plural extensions and external lines and implementing the connection processing between the extension and the external line or between the extensions and comprising plural ISDN terminal equipments A connecting to the extensions is featured to have the terminal equipment A which is provided with a call control section 104 of the main control section 101 which discriminates whether a caller is an extension caller or an external line caller, adds a specific call tone identification code to an incoming subaddress of a SETUP signal sent from the caller and sends the resulting signal to the ISDN terminal equipment, a call control section 108 selecting one call tone among several kinds of call tones based on the added call tone identification code for a designated call tone, and a call tone generating section 109 outputting a call tone from the call control section 108.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ringing tone output system for an ISDN telephone device which accommodates a plurality of external lines and internal lines.

[0002]

2. Description of the Related Art FIG. 4 shows an operation procedure when a connection request is received to an ISDN button telephone device accommodating a terminal having an ISDN interface. First, the originating side 401 sends a SETUP signal 402 through an extension line or an outside line.
Is transmitted to the main control unit 403. The main control unit 403 is S
By referring to the data of the destination address or the destination subaddress in the ETUP signal 404, the target receiving ISDN terminal 405 is identified, and the SETUP signal is sent to the target ISDN terminal 405. When the ISDN terminal 405 receives the SETUP signal, the ISDN terminal 405 sounds a ringing tone, and the main control unit 403 receives the ALER
The T signal 406 is transmitted. At this time, the main control unit 403 sends an ALERT signal 407 to the extension line or the extension line of the originating side 401.
Is sent back.

[0003]

However, the above-mentioned conventional I
The ISDN terminal of the SDN telephone device receives the SETU received.
It was not possible to determine whether the calling side was an extension line or an outside line only from the P signal, and the ringing tone could not be switched depending on the path of the calling side.

Therefore, an object of the present invention is to provide a ringing tone output system for discriminating whether the calling side is an outside line or an inside line and switching a ringing tone for notifying the user between the outside line and the inside line.

[0005]

In order to solve the above problems, in the ringing tone output system of the ISDN telephone apparatus of the present invention, the main control unit determines whether the calling side is an extension line or an outside line, and the calling side A specific ringing tone identification code is added to the called subaddress of the transmitted SETUP signal and ISDN is added.
ISDN having an identification code transmitting means for transmitting to the terminal
The terminal has switching means for selecting one of several types of ringing tones based on the added ringing tone identification code and switching a designated ringing tone, and ringing tone generating means for outputting the ringing tone from the switching means. It is characterized by

[0006]

The main controller determines whether the calling side is an extension or an outside line by the determination means, and the ringing tone identification code capable of identifying the outside line or the extension at the destination subaddress of the SETUP signal by the identification code transmission means. It is added and sent to the ISDN terminal connected to the extension.

The ISDN terminal uses the switching means for SE
A designated ringing tone is selected and switched from the identification code of the called subaddress of the TUP signal, and the designated ringing tone is played by the ringing tone generation means to notify the user of the incoming call.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a ringing tone output system of the present invention will be described with reference to the drawings. FIG. 1 is an overall configuration diagram of an ISDN telephone device of a ringing tone output system according to the present invention.

The ISDN telephone device of the present invention comprises a main controller 1
01, terminal A and terminal B, and the main control unit 101
Is an external ISDN interface 103, a call control unit 104, and an internal ISDN interface 105 and I
It consists of the SDN interface 106, ISDN
It is connected to the network (outside line) via the ISDN interface 103, and is connected to the terminal B (extension line) by the ISDN interface 10.
It is connected via 6. Call control unit 1 which is a determination means
In 04, the connection request from the calling side is ISDN interface 1
It is determined whether it is an external line received via 03 or an internal line received via the ISDN interface 106, and a specific ring back tone identification code is added to the SETUP signal transmitted from the calling side to add the ISDN interface 1
It is output to the terminal A via 05.

The terminal A has an ISDN interface 107.
, Call control unit 108, ringing tone generation unit 109, and speaker 11
0, and is connected to the main control unit 101 via the ISDN interface 107. Call control unit 108
Selects a designated ringing tone based on the ringing tone identification code added to the SETUP signal, inputs the output signal to the ringing tone generating unit 109, and the ringing tone generating unit 109 outputs the ringing tone through the external speaker 110.

FIG. 2 is an operation flow of the main control unit 101 of the ringing tone output system according to the present invention. Main control unit 101
Then, in the case of a connection request from the ISDN network (external line) 102 to the terminal A, a number designating the terminal A is written in the called address or called subaddress of the SETUP signal transmitted from the outside line. The call control unit 104 of the main control unit 101 is notified via the ISDN interface 103 (S21). Next, the call control unit 104 assigns the SETUP signal as the outside line side to the ISDN interface (the outside line side ISDN telephone slot).
Since it is received from 103, the transmitting side determines that it is an outside line (S22).

Then, a ringing tone switching code "eg * 1" indicating that the originating side is an outside line is added to the destination subaddress in the SETUP signal (S23), and is sent to the terminal A via the ISDN interface 105 (S25). When there is a connection request from the terminal B (extension) to the terminal A,
A number designating the terminal A is written in the destination address or destination subaddress of the SETUP signal transmitted from the extension, and the SETUP signal is notified to the call control unit 104 via the ISDN interface 106.

Next, the call control unit 104 receives the SETUP signal from the ISDN interface (the insertion port of the ISDN telephone on the extension side) 106 assigned as the extension side, and therefore determines that the calling side is the extension. And SETUP
A ringing tone switching code "for example * 2" indicating that the originating side is an extension is added to the destination subaddress in the signal (S2
4), terminal A via ISDN interface 105
To send to. FIG. 3 is an operation flow of the terminal A of the ring back tone output system according to the present invention. When the terminal A receives the SETUP signal from the main control unit 101 via the ISDN interface 107 (S31), it notifies the call control unit 108 of the terminal A. The call control unit 108 refers to the data of the called subaddress in the received SETUP signal, and if the ringing tone identification code is “* 1” (S32), the ringing tone generating unit 109 of the terminal A is notified of the ringing tone for the outside line. Request generation (S
33). If the ringing tone identification code is "* 2", the ringing tone generating unit 109 is requested to generate the ringing tone for the outside line (S34). Upon receiving the request from the call control unit 108, the ringing tone generation unit 109 outputs the requested ringing tone for outside line or ringing tone for extension line to the external speaker 1
Output by 10. When the output ringing tone is a ringing tone for an outside line, the user takes measures such as preparing a memo pad as a preparation before picking up the receiver.

[0014]

As described above, the ringing tone output system of the present invention is the SE which is sent to the ISDN telephone when receiving a call.
By adding a ringing tone switching code to the TUP signal, it becomes possible to change the ringing tone of the extension line and the outside line, and the user can take the necessary measures just by listening to this ringing tone before picking up the handset. It became so.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of a ringing tone output type ISDN telephone device according to the present invention.

FIG. 2 is an operation flow of a main control unit of the ringing tone output type ISDN telephone device according to the present invention.

FIG. 3 is an operation flow of the terminal A of the ringing tone output system ISDN telephone device according to the present invention.

FIG. 4 is an operation flow when a telephone device having a conventional ISDN interface receives an incoming call.

[Explanation of symbols]

 101 main control unit 102 ISDN network A terminal B terminal

Claims (1)

[Claims] 1. A ringing tone output of an ISDN telephone device comprising a main control unit which accommodates a plurality of extension lines and an extension line and performs connection processing between the extension line and the extension line or between the extension line and the extension line, and a plurality of ISDN terminals connected to the extension line. In the method, the main control unit determines whether the calling side is an extension line or an outside line when a connection request is made from the extension line or the outside line, and from the calling side based on the determination result of the determination means. The ISDN terminal has an identification code transmitting means for adding a specific ringing tone identification code to the destination sub-address of the transmitted SETUP signal and transmitting it to the ISDN terminal. The ISDN terminal calls several types of calls based on the added ringing tone identification code. It has switching means for selecting one of the sounds and switching to the designated ringing sound, and ringing sound generating means for outputting the ringing sound from the switching means. Call sound output system, characterized in that it consists.