JPH0662095A - Utilization of isdn subaddress - Google Patents

Abstract

PURPOSE:To obtain utilization capable of paying a telephone charge on its own side by ringing a speaker in a specific tone for an incoming call from a specific telephone number to a prescribed subaddress, stopping the incoming call, and issuing an outgoing call by return to an opponent. CONSTITUTION:An outgoing/incoming call part 2 discriminates whether or not an incoming subaddress is a specific subaddress arranged preliminarily with the opponent. A control part 10 issues an instruction to a telephone/speech part 9 based on a discrimination result, and the speech part 9 rings the speaker 8 in a prescribed tone, and also, off-hooks a handset 6, and cuts off line connection from the opponent. After that, a telephone is automatically placed to the stored telephone number of the opponent and the subaddress of the opponent via the outgoing call part 2. In such a way, it is possible to obtain the utilization of the subaddress of an Integrated Services Digital Network in which the telephone charge is paid on tis own side by deciding the utilization of the specific subaddress between specific users in advance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of using a sub-address in a terminal device such as a telephone connected to an ISDN (Integrated Services Digital Network).

[0002]

2. Description of the Related Art Digital telephones used for ISDN are
The telephone has a function of converting voice into an electric waveform, converting it into a digital signal with a built-in CODEC, and transmitting the digital signal, and then returning the digital signal to the original analog electric waveform at the receiving side. The digital telephone is suitable for advanced usage in addition to the basic telephone function of dialing and making a call. For example, there is a "caller ID display" function of displaying the telephone number of the person making a call on the display of the telephone using the D channel signal of ISDN, which is effective for nuisance call prevention and crime prevention. In addition, ISDN
In the case of Japan, in Japan, the domestic ISDN number is a 9-digit domestic destination code (city code + local code), followed by an ISDN subaddress of up to 20 bytes.
However, since the sub-address is sent to the other party by simply passing through the ISDN network, the users can freely decide how to use the sub-address and the correspondence with the terminal.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and by determining the usage of a special sub-address between specific users, the telephone charge from the other party to the special sub-address can be reduced. The purpose is to provide a method of using the ISDN subaddress paid by the user.

[0004]

In order to achieve the above object, a CODEC connected to a DSU (line terminator),
An incoming / outgoing phone call, a caller / receiver that sends out a telephone number code, etc., a determiner that determines the subaddress code, a display that displays the telephone number, and a storage that stores the telephone number, subaddress, etc. A handset for calling, a dial unit for inputting a telephone number, a speaker for generating a ringing tone, a telephone / call unit, and a control unit for controlling each unit.

[0005]

With the above-described structure, after a call is made from a specific telephone number (counterpart) to a predetermined subaddress and an incoming call arrives, for example, a speaker is sounded with a specific sound indicating that the call charge is to be paid on this side. By accepting the payment and off-hooking the handset, the call from the other party is automatically terminated and the other party makes a call.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A method of using an ISDN subaddress according to the present invention will be described in detail below with reference to the drawings. Figure 1
FIG. 3 is a block diagram of a digital telephone that implements a method of using an ISDN sub-address according to the present invention. Reference numeral 1 is a CODEC that converts the digital signal 12 into an analog signal and the analog signal into a digital signal 12. Reference numeral 2 denotes a calling / receiving unit that sends a control code such as a telephone number and a subaddress of the other party in a predetermined format and receives the control code from the other party. Reference numeral 3 is a discriminating unit for discriminating the sub-address transmitted from the other party as the sub-address previously agreed with the other party. Reference numeral 4 is a display unit that displays the telephone number of the person who made the call. Reference numeral 5 denotes a storage unit that stores a sub-address and a telephone number of the user, which are arranged in advance with the other party. 6 is a handset for making a call. Reference numeral 7 is a dial section for keying the telephone number and sub-address of the other party. Reference numeral 8 is a speaker that generates a normal ringing sound and a sound indicating sub-addressed reception that is arranged in advance with the other party. Reference numeral 9 is a telephone / talking unit that detects the on-hook and off-hook of the handset 6, connects the dial unit 7, and outputs a predetermined sound signal to the speaker 8 to perform basic signal processing of the telephone. 1
Reference numeral 0 is a control unit for controlling each unit such as instructing the telephone / call unit 9 to generate a predetermined sound signal when receiving a sub-address which is arranged in advance with the other party.

FIG. 2 is a table showing a method of assigning a subaddress to a terminal device. Reference numeral 20 is the name of various terminal devices connected to the DSU. Reference numeral 21 is a sub-address including a normal sub-address 22 assigned to each terminal device and a special sub-address 23 which has been discussed in advance with the other party and whose usage has been determined.

The operation will be described. FIG. 3 shows the I according to the invention.
9 is a flowchart illustrating a method of using an SDN sub address. Each terminal device connected to the DSU receives a call to a sub address of a digital telephone, for example (STP1). The telephone number of the other party is displayed and stored, and the sub address of the other party is stored (STP2). It is determined in advance whether or not the received sub-address is a special sub-address that has been discussed with the other party (STP3). If YES, a ringing tone representing the special sub-address is generated (STP).
4). Determine if you picked up the handset (STP
5) If YES, the incoming call from the other party is stopped at the incoming call section (STP6). A call is automatically made to the stored telephone number and sub address of the other party via the transmitting unit (STP7). After connecting the line, talk to the other party (STP
8). In the case of NO in STP3, a normal telephone ringing tone is generated from the speaker (STP10). It is determined whether the handset is picked up (STP11), and Y
In the case of ES, the call is made with the other party (STP8). STP1
In the case of 1 and NO, the process ends. If NO in STP5, the process ends.

[0009]

[Effects of the Invention] By deciding how to use a special sub-address between specific users in advance, the incoming call to the special sub-address from the other party can be stopped and the other party can call back to the other party. As a result, it is possible to provide a method of using the ISDN subaddress in which the telephone fee is paid by the user. Therefore, the usage of ISDN is expanded.

[Brief description of drawings]

FIG. 1 is a block diagram of a digital telephone implementing an ISDN sub-address utilization method according to the present invention.

FIG. 2 is a table showing a method of assigning a sub address to a terminal device.

FIG. 3 is a flowchart illustrating a method of using an ISDN sub address according to the present invention.

[Explanation of symbols]

 1 CODEC 2 Originating / Receiving Part 3 Discriminating Part 4 Display Part 5 Storage Part 6 Handset 7 Dial Part 8 Speaker 9 Telephone / Talking Part 10 Control Part 12 Digital Signal 20 Terminal Device Name 21 Sub Address 22 Normal Sub Address 23 Special Sub Address

Claims (1)

[Claims] 1. A CO connected to a DSU (line terminating device)
The DEC, the incoming / outgoing call of the telephone, the outgoing / incoming section for sending out the telephone number code, etc., the discrimination section for discriminating the subaddress code, the display section for displaying the telephone number, etc., and storing the telephone number and subaddress etc. A digital telephone including a storage unit, a handset for calling, a dial unit for inputting a telephone number, a speaker for generating a ringing tone, a telephone / call unit, and a control unit for controlling each unit. , The outgoing / incoming section receives an incoming call, determines the sub-address, and based on the result, sounds the speaker with a predetermined sound and off-hooks the handset to disconnect the line connection made by the outgoing / incoming section from the other party. In addition, a method of using the ISDN subaddress, which is characterized by making a call to the other party from this side instead.