JPH07123154A - Speech controller - Google Patents

Abstract

PURPOSE:To provide call waiting service excellent in operability by immediately informing the third party of that a speaker who receives the speaking request is busy at present but will answer depending on his will at the time of receiving another call from the third party in the busy state. CONSTITUTION:If the speaking request to a telephone set 1000 occurs from a telephone set 3000 in the middle of the service between the telephone set 1000 and a telephone set 2000, an exchange 4000 decodes a dial signal 202 and sends a ringer tone 203 to the telephone set 1000. The speaker of the telephone set 1000 merely ignores the ringer tone 203 when it is desired to continue the speech to the telephone set 2000, but the immediately returns a response signal 205 to the exchange 4000 by a specific dial operation when desired to switch this speech to the speech to the telephone set 3000. The exchange 4000 sends a speech notice message 206 of the telephone set 1000 to the telephone set 3000; and when the speaker of the telephone set 1000 interrupts the speech and performs hook operation 207, the line is connected between telephone sets 1000 and 3000.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a call control function in a telecommunications network including a telephone and an exchange, and in particular, when a call request from a third party occurs during a call,
The present invention relates to a call control device capable of promptly confirming the presence or absence of a call partner by allowing a third party to be notified that a call is currently in progress but a response is scheduled.

[0002]

2. Description of the Related Art Conventionally, in order to be able to accept a call request from a third party that occurs during a call on a telephone, the caller in front is kept waiting when there is an incoming call from another person during the call. ,
There was a service that allows users to make subsequent calls (hereinafter, also called incoming call service).

In this service, when a call request is made from a third party during a call, a special signal tone is played to the caller. The caller can make a call with a third party by operating the hook operation of the telephone triggered by this sound. As a result, it is possible to receive an emergency call from another person during a call. Of course, if the hook operation is not performed, the original call can be continued as it is.

[0004]

In the conventional call waiting service as described above, when the caller wants to hear the signal tone and wants to switch to the call with the third party, the call currently being made is first made. Since an incoming call from another person has occurred to the other party,
Since the hook operation is performed after the notification that the call is temporarily suspended, a time delay occurs between the generation of the signal sound and the hook operation. On the other hand, since the same ring tone is sent to the third party regardless of whether the call requesting party is currently in a call, the third party does not know whether the call requesting party is busy or not. It cannot be judged from the ringing sound.

Therefore, when the above-mentioned time delay becomes large, a problem arises that the third party judges that the call requesting party is absent even though the call requesting party is busy and disconnects the call. In addition, the caller who receives the incoming call from the third party receives the psychological pressure that the third party may hang up the telephone unless it is switched immediately.

As a method for solving the above-mentioned problem, it is possible to give an unusual ringing tone to a third party when the call requesting party is busy. However, if the call requesting party considers the current call to be important and does not want to switch to a call with a third party, he / she wants the third party to say that he / she is busy and absent. However, it is not preferable to uniformly notify the third party that the call is in progress as in this method.

The present invention has been made in order to solve such a conventional problem. When a call request from a third party occurs during a call, the caller who receives the call request receives the call request. It is an object of the present invention to realize a call control device capable of promptly notifying a third party that a call is in progress or not notifying the third party according to the intention.

[0008]

According to the invention, the above objects are achieved by the means recited in the claims.

That is, according to the present invention, in a system including a telephone and an exchange, a call request from a third speaker to a first speaker is made while a first speaker and a second speaker are talking. When the call request is generated, the function of notifying the first speaker of the occurrence of the call request is detected, and when the response signal 1 from the first speaker to the notification is detected, the first speaker Second
The function of notifying the third speaker that the first speaker is in a call while maintaining the communication line between the two speakers, and when the response signal 2 from the first speaker is detected, A call control device having a function of switching a line to enable a call between a first speaker and a third speaker.

[0010]

According to the present invention, in a system including a telephone and an exchange, when a call request is made from a third speaker to a first speaker while a first speaker and a second speaker are talking. Then, the occurrence of the call request is detected and the first speaker is notified of this. Response signal 1 from the first speaker to this notification
When is detected, the third speaker is notified that the first speaker is talking while maintaining the communication line between the first speaker and the second speaker.

On the other hand, when the response signal 2 from the first speaker is detected, the line is switched to enable a call between the first speaker and the third speaker. According to the intention of the first speaker, while the call line between the first speaker and the second speaker is maintained, the first speaker is in a call, but he / she promptly responds. Immediately notify the third speaker.

The present invention can be realized, for example, only by newly adding a function for call control to the exchange side. In this case, the existing telephone can provide a more convenient incoming call service than the conventional one without modification.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing an example of a system to which the present invention is applied. This system consists of a telephone 1000 and a telephone 2.
000 and the telephone 3000 are connected to the exchange 4000 to talk between the telephones.

FIG. 2 shows a telephone 1000 and a telephone 2000.
From the telephone 3000 to the telephone 100 during a call with
It is a figure which shows the flow of a signal when the telephone call request | requirement with respect to 0 generate | occur | produces.

In the figure, numeral symbols 1000 and 200
Each device of 0, 3000 and 4000 is the same as the device shown in FIG. When the handset is picked up from the telephone 3000, the calling signal 200 is transmitted to the exchange 4000, and the dial tone 2
01 is returned to the telephone 3000. Telephone 3000 sends dial signal 202 to switch 4000. Switch 40
00 decodes the signal and sends a ringing tone 203 to the telephone 1000 that is talking with the telephone 2000. at the same time,
Send ringing tone 204 to telephone 3000.

The ringing tone 204 is the same tone regardless of whether the telephone 1000 is busy. The caller of the telephone 1000 that receives the ringing sound 203 selects whether to continue the call with the telephone 2000 as it is or to suspend the call with the telephone 2000 and switch to the call with the telephone 3000. To continue the call with the telephone 2000, the ringing tone 203 may simply be ignored. When switching to a call with the telephone 3000, the response signal 205 is immediately returned to the exchange 4000 by a specific dial operation (for example, turning 1).

The exchange 4000 receives this, and the telephone 1
A call announcement message 206 indicating that 000 is currently in a call but is scheduled to respond is sent to the telephone 3000.
At the stage of receiving the response signal 205, the telephones 1000 and 2000 remain in a callable state.

The caller of the telephone 1000 can then call the telephone 2
000 parties to the telephone 30
Notify that the number will be switched to 00, and perform hook operation 207. When the exchange 4000 detects this hook operation 207, it connects the line between the telephone 1000 and the telephone 3000. As a result, a telephone call between the telephone 1000 and the telephone 3000 is started.

FIG. 3 is a block diagram showing the configuration of exchange 4000. The call executing unit 300 connects the call line between the telephones. The call control device 301 performs various controls at the time of line connection, and includes a signal decoding unit 302, a signal transmitting unit 303,
It includes a talk sound transmission unit 304 and a connection control unit 305.

The signal decoding unit 302 decodes various signals (calling signal 200, dial signal 202, response signal 205, hook operation 207) generated from the telephone and notifies the connection control unit 305. The signal sending unit 303 sends various signals to the telephone (a dial tone 201, a ring tone 203, and a ring tone 2).
04) is transmitted. The talk sound transmission unit 304 transmits the call announcement message 206 to the telephone. Connection control unit 3
Reference numeral 05 controls the entire exchange concerning the line connection.

FIGS. 4 and 5 are flow charts showing the operation of the call control device 301 up to the start of a call when a call request is issued from the phone 3000 to the phone 1000. The numerical symbols attached to each step in the figure correspond to the numbers in parentheses in the following description.

In the figure, when the call control device 301 receives the calling signal 200 from the telephone 3000, it sends a dial tone 201 to the telephone 3000 (402). Next, when the dial signal 202 is received from the telephone 3000 (403), it is decoded and it is identified that the other party of the call request is the telephone 1000 (404).

Next, it is checked whether or not the telephone 1000 is currently talking (405). When not in a call, a normal ringing tone is sent to the telephone 1000 and at the same time,
Send ringing tone 204 to telephone 3000 (40
6). After that, the line between the telephone 1000 and the telephone 3000 is connected to start a call (407).

When the telephone 1000 is busy, a ringing tone 203 is transmitted to the telephone 1000 and at the same time, a ringing tone 204 is transmitted to the telephone 3000 (409).
Next, wait for the response signal 205 from the telephone 1000 (4
10). If there is no response signal 205, the telephone 3000
The process is terminated without connecting with (408).

When the response signal 205 is returned, a call announcement message 206 indicating that the telephone 1000 is currently in a call with respect to the telephone 3000, but the telephone is scheduled to respond promptly.
Is sent (411), and the hook operation 20 of the telephone 1000 is performed.
Wait for 7 (412). If there is no hook operation 207,
The process is terminated without connecting to the telephone 3000 (4
08).

When the hook operation 207 is performed, the line between the telephone 1000 and the telephone 3000 is connected to start a call (413). Of course, if the hook operation 207 is detected before the response signal 205 is detected, it goes without saying that the same operation as that of the currently receiving incoming call service is performed.

[0027]

As described above, according to the present invention,
If a call request from a third party is made during a call, the caller who received the call request will immediately inform the third party that the call is currently in progress but will be answered. Since notification is possible, there is an advantage that a more convenient incoming call service can be provided as compared with the related art.

Further, the present invention can be realized only by adding a function on the exchange side. In this case, since there is no need to modify the existing telephone, there is an advantage that the existing service can be easily switched.

[Brief description of drawings]

FIG. 1 is a diagram showing an example of a system to which the present invention is applied.

FIG. 2 is a diagram showing a signal flow when a call request is issued from another telephone during a call between two telephones.

FIG. 3 is a block diagram showing a configuration of an exchange.

FIG. 4 is a flowchart (No. 1) showing the operation of the call control device.

FIG. 5 is a flowchart (No. 2) showing the operation of the call control device.

[Explanation of symbols]

 200 call signal 201 dial tone 202 dial signal 203, 204 ring tone 205 response signal 206 call announcement message 207 hook operation 300 call executing unit 301 call control device 302 signal decoding unit 303 signal sending unit 304 talk sound sending unit 305 connection control unit 402-413 Process steps 1000, 2000, 3000 Telephone 4000 Switch

Claims (1)

[Claims] 1. A system comprising a telephone and an exchange, wherein a call request is made from a third speaker to a first speaker during a call between the first and second speakers. A function of notifying the first speaker of the occurrence of the call request, and a response signal 1 from the first speaker to the notification, when the first speaker and the second speaker are detected. A function of notifying the third speaker that the first speaker is in a call while maintaining the communication line between the speakers, and the first signal when the response signal 2 from the first speaker is detected. A call control device having a function of switching a line for enabling a call between a speaker of No. 3 and a third speaker.