JPH07177231A - Connection control method for communication terminal - Google Patents

Abstract

PURPOSE:To automatically inform that an answer can not be made and discon nect a line by the connection controller of an exchange when there is incoming during a telephone call by providing the connection controller with a necessary circuit in addition to a 'Catch phone(R)' circuit 5. CONSTITUTION:The connection controller 1 of the local exchange A10 is provided with a dial signal receiving circuit 2, a message sending-out circuit 3, and a message table 4 in addition to the 'Catch phone(R)' circuit 5. When the circuit 2 of a reception monitoring circuit detects reception from another terminal during a telephone call by a 'Catch-phone(R)' using subscriber, the circuit automatically informs the terminal of an answer can be made by referring to the table 4 from the circuit 3, and the line is disconnected. An unnecessary line holding time is therefore shortened and the exchange can effectively be utilized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides that when one subscriber in a call is requested to connect by a subscriber of a third terminal, one subscriber is in a call without interrupting the call. The present invention relates to a connection control method for notifying a subscriber of the third terminal.

[0002]

2. Description of the Related Art Conventionally, via a connection control device of an exchange,
When there is a connection request from the subscriber of the third terminal to the connection control device to one of the terminals in communication between the subscribers of the first and second terminals, the subscription of the one terminal in the device. It is checked whether or not the person number is stored, and if it is stored, an incoming call display tone is sent to the one terminal that requested connection and a ringing tone is sent to the third terminal. , When the hooking signal from the one terminal is received and the hooking signal from the one terminal is received,
By connecting the one terminal and the third terminal to enable a call with the subscriber of the third terminal and further hooking, a method of returning the other party of the call is called so-called call waiting (registered trademark). Is a connection control method (hereinafter, this method is referred to as call waiting).

[0003]

However, in the above method, even if the incoming call from the third terminal is known by the incoming call display sound sent from the exchange during the call, depending on the other party in the call, it is desired to interrupt the call. Hooking may not be performed due to reasons such as not having it.

In such a case, the subscriber of the third terminal who originated the call has a ringing sound forever, and thus has a drawback that he / she is absent.

When the ringing tone is continuously transmitted, during that time,
There was a problem that the line was put on hold.

In order to solve the above-mentioned problems, the present invention cannot respond to a subscriber of a third terminal that has received a call during a call without interrupting the call when a call is received during the call. The purpose of this is to automatically notify that, and to have the line disconnected so as to avoid unnecessary line holding and to effectively use the equipment of the exchange.

[0007]

According to the present invention, in order to achieve the above-mentioned object, an incoming call display sound is received by the connection control device in addition to the incoming call display sound sending circuit and the hooking signal monitoring circuit. A circuit for monitoring a dial pulse signal or a dial tone signal (both signals are hereinafter referred to as dial signals) sent from a terminal, a message table storing predetermined message information corresponding to the dial signal, and the message information. And a message sending circuit for sending.

By doing so, when one terminal in a call receives an incoming call from the third terminal, if the subscriber of the one terminal cannot interrupt the call, a predetermined dialing is performed in the call state. When the number is pushed, a message corresponding to the dialed number is sent to the subscriber of the third terminal to inform that the call is in progress.

[0009]

Since the connection control device of the exchange is configured as described above, when a call is received from the third terminal during a call at the terminal of the subscriber who receives the call waiting service, the connection control device causes the connection control device to display an incoming call sound. While monitoring both the hooking signal and the dial signal from the terminal, when the hooking signal is received, the terminal is connected to the third terminal, and when the hooking signal is subsequently received, the original partner is connected. .

Further, when the dial signal is received, the message corresponding to the dial signal is extracted from the message table and automatically sent to the third terminal, so that the subscriber does not interrupt the call and the predetermined message. To the subscriber of the third terminal.

[0011]

1 is a block diagram of one embodiment of the present invention, FIG.
4 is a flowchart of an embodiment of the present invention.

In FIG. 1, 10, 20, and 30 are local exchanges A, B, and C, respectively. 1 of city exchange A10
Is a connection control device, 2 is a dial signal receiving circuit, 3 is a message sending circuit, 4 is a message table, and 5 is a call waiting circuit.

In FIGS. 1 and 2, A is the terminal of the first caller (call waiting user) (hereinafter referred to as terminal A), and B is
Is a terminal of a second party (hereinafter referred to as terminal B), and C is a terminal of a third party (hereinafter referred to as terminal C).

In FIG. 1, terminals A and B are exchanges A.
When a call is made from the C terminal to the A terminal via the exchange C30 during a call via the exchange 10 and the exchange B20, an incoming call display sound is transmitted from the call waiting circuit 5 of the connection control device 1 to the A terminal.

In the flow thereafter, the line with the B terminal is put on hold by the hooking signal from the A terminal, and the communication line between the A terminal and the C terminal is established.

When the terminal A hooks again, the line with the terminal C is put on hold, the call lines of the terminals A and B are reset, and the call is resumed. Terminal C is turned off by the intention of terminal A.

According to the present invention, as shown in FIG. 2, when the terminal A receives the incoming call display sound, it is possible to send a dial signal in addition to the hooking signal.

When the dial signal is transmitted from the terminal A, the dial signal receiving circuit 2 receives the signal, identifies the signal, and stores a message corresponding to the signal in the message table 4 in advance. It is extracted and transmitted from the message transmission circuit 3 to the C terminal.

Several messages are prepared corresponding to dial signals.

If, for some reason, the current call cannot be interrupted, you can press "2," for example, and the message "I cannot answer because I am currently on a call. I'm sorry, please try again later." Is sent.

The C terminal which received the message hangs up the telephone.

When the terminal A may interrupt the call with the terminal B, hooking is performed as in the conventional method to C.
If you connect to the terminal, hear the message, and hook, you can continue talking with the terminal B again.

[0023]

As described above in detail, according to the present invention, in addition to the conventional call waiting function, the connection control device of the exchange can receive the dial signal sent from the terminal of the subscriber who receives the service. Since a circuit for receiving, a message table for storing a message corresponding to the signal, and a circuit for transmitting the message are provided, when the subscriber receives an incoming call indication sound from the third terminal during a call. By pressing the dial that corresponds to the message you want to send to the subscriber of the third terminal who made the call without hooking, the appropriate message is automatically sent to the subscriber of the third terminal without interrupting the call. It has the effect of sending it out and getting approval, and this disconnects the line.
It can be expected that the unnecessary line holding time can be shortened and the equipment of the exchange can be effectively used.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

FIG. 2 is a flow chart of one embodiment of the present invention.

[Explanation of symbols]

 1 Connection Control Device 2 Dial Signal Reception Circuit 3 Message Transmission Circuit 4 Message Table 5 Call Waiting Circuit 10 Local Switch A 20 Local Switch B 30 Local Switch C A First Caller Terminal B Second Caller Terminal C Three caller terminal

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

Claims (1)

[Claims] 1. A connection request from a subscriber of a third terminal to one of terminals in a call between subscribers of a first terminal and a second terminal via a connection controller of an exchange. Then, it is checked whether or not the subscriber number of the one terminal is stored in the device, and if the subscriber number is stored, an incoming call indication sound is sent to the one terminal that made the connection request. Then, the ringing tone is sent to the third terminal and the hooking signal from the one terminal is received. When the hooking signal from the one terminal is received, the one terminal and the third terminal In a connection control method of a communication terminal for controlling connection with a terminal, a dial signal receiving circuit for receiving a predetermined dial pulse signal or dial tone signal in the connection control device, and the dial pulse signal or dial tone signal. A message table for storing predetermined message information corresponding to the voice signal, and a message transmitting circuit for transmitting the message information, and when in the receiving state, the predetermined dial pulse signal or dial tone signal is received. In this case, the connection control of the communication terminal, characterized in that the signal is identified, a message corresponding to the signal is extracted from the message table, and is sent to the third terminal via the message sending circuit. Method.