JPH0746315A - Call waiting system - Google Patents

Abstract

PURPOSE:To inform a calling subscriber that a called subscriber is a subscriber applied to this call waiting system service, by informing that the called party is busy and a call tone based upon the call waiting system is sent. CONSTITUTION:This call waiting system consists of a talkie trunk 4 being an informing means indicating call waiting service and a channel switch 1 and a central control device 2 for controlling the operation of respective trunks 3, 4. When a call is terminated from the 3rd subscriber C during the period of talking between a subscriber A to be a person receiving the call waiting service and another subscriber B, the trunk 4 informs that the subscriber A is busy and a call tone based upon the call waiting system is sent to the 3rd subscriber C prior to the sending of the call tone. Even at the time of listening a call tone, the subscriber C can know that the subscriber A is busy and the misunderstanding that delay in the response operation of the subscriber A is due to his (or her) absence can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone call receiving service, and more particularly to a call waiting system.

[0002]

2. Description of the Related Art Conventionally, a third party who is talking is generally given a third party.
When there was an incoming call from the other party, only the busy tone was sent to the calling party of the third party, and nothing was displayed to both parties in the call. However, as one of the telephone call receiving services, there is a means for displaying that there is an incoming call during a call.
0-41356, JP-A-2-137456 and the like. By registering these in advance,
When one of the two subscribers in a call receives an incoming call from the third subscriber, the subscriber in the call is informed that there is an incoming call from the other subscriber, and the third subscriber is notified. Is to implement a call waiting service that sends out a ring back tone. In FIG. 2, this conventional service system sends a call tone to a third line subscriber, a speech path switch 1 to which subscribers A, B and C are connected, a central control unit 2 for controlling the same. It consists of a ringing tone trunk 3. While the subscriber A who has registered to provide the call weighting service is in a call with the subscriber B via the path a in the speech path switch 1, the third subscriber C makes the subscriber A
When the user dials, the central control unit 2 detects that the subscriber A is in a call and that the subscriber is a subscriber of the call weighting service, and the call path switch 1 gives the subscriber A an incoming call display sound. Is sent, and the ringing tone trunk 3 instructs the subscriber C to send a ringing tone. The subscriber A knows that there is an incoming call from the third party by the in-call incoming call display signal, and hooks or dials a specific number after hooking to answer. Subscriber C
Is connected to the ringing tone trunk 3 and receives the ringing tone until the operation of the subscriber A is completed. When the operation of subscriber A is completed,
The subscriber C receives the path b from the ring back tone trunk 3 to the subscriber A.
Then, the call between the subscriber A and the subscriber C is carried out via the path b. During the meantime, the subscriber B is put on hold via the path a, and the subscriber A resumes the call between the subscribers A and B by hooking or dialing a specific number after hooking again.

[0003]

The above-mentioned conventional call-weighting method is such that when the subscriber A who has registered for the call-waiting service is talking to the subscriber B, the subscriber C calls the subscriber A. Since the ringing tone is sent to the calling subscriber C without any notice, the subscriber C is often misunderstood. For example, if the subscriber A receives the incoming call display tone during the call, but the call with the subscriber B cannot be immediately interrupted, the switching to the subscriber C is delayed, and thus the subscriber C joins. There is a drawback that the person A decides that he / she does not respond because he is absent and hangs up the telephone, so that the subscriber A is dialed again later.

An object of the present invention is to solve the above-mentioned drawbacks and to notify a calling subscriber who dials the calling subscriber that he / she is talking that the calling subscriber is a subscriber of this service. To provide.

[0005]

According to the call weighting method of the present invention, a subscriber A who is a recipient of a call weighting service is in a call with another subscriber B while the subscriber A is in a call.
When a call is received from the third subscriber C to the third subscriber C, the call waiting is performed by the called subscriber A before the ringing tone is sent to the third subscriber C who is the calling subscriber. It has a notification means for notifying that a ringing tone according to the method is sent.

Further, the notifying means for notifying the calling subscriber C that the called subscriber A is the call weighting system is constituted by a talkie trunk or a voice synthesizer.

[0007]

The calling subscriber C is informed in advance that the call-waiting called subscriber is currently talking even if the ringing tone is sent.

[0008]

Embodiments of the present invention will now be described with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an embodiment of the call weighting system of the present invention.

The system of this embodiment is based on the telephone subscriber A,
B, C, etc., a call path switch 1 in which call path a, b, etc. between each subscriber are set, a ringing tone trunk 3 for transmitting a ringing tone of a call weighting system, and a call weighting service. It comprises a talkie trunk 4 which is a notification means to that effect, a speech path switch 1, and a central control unit 2 which controls the operations of the trunks 3 and 4. Of these,
Each device other than the talkie trunk 4 and its drive portion may be the same as the conventional one.

Next, the operation of this embodiment will be described.
It is assumed that the subscriber A who is registered for the call weighting service is in a call with the subscriber B through the call path switch a. At this time, when the subscriber C dials the subscriber A, the central control unit 2 monitoring the communication path switch 1
Detects this, and identifies that the subscriber A is a call-waiting service recipient during a call, and the call path switch 1 sends a call-incoming-call-indicating tone to the subscriber A. At the same time, for the subscriber C, the talkie trunk 4 is connected via the path d, and the effect of call weighting, for example, when the called subscriber A is in a call with another subscriber, Since it is notified that there is a ringing tone, the user is notified by a recorded voice that he or she wants to wait for a while while the ringing tone is heard, then the connection is switched to the ringing tone trunk 3, and the ringing tone is sent out via the path c. When the subscriber A, who is in a call with the subscriber B, knows that there is an incoming call, he / she can make a call with the waiting subscriber C by a hooking operation, a dial of a specific number, or the like operation. Calling subscriber C
Is the fact that the other party subscriber A knows our incoming call during the call,
Further, at least it can be seen that the subscriber A is not absent, so that the user waits while listening to the ringing tone, or hangs up the telephone once and waits for the end of the call of the subscriber A to call again. If the requirement of subscriber C is not urgent,
When the subscriber C cancels the call, the call between the subscriber A and the subscriber B is less likely to be disturbed.

In the present embodiment, the case where the subscribers A, B and C are accommodated in the same exchange is shown. However, even when the subscriber B or C is accommodated in another exchange, The same operation can be performed when the apparatus of this system is installed in the station in which the subscriber A is accommodated. Further, in the present embodiment, an example in which the notification to the subscriber C is performed using the talkie trunk is shown, but it is also possible to use a voice synthesizer.

[0013]

As described above, according to the present invention, the called subscriber has the call waiting service before sending the ringing tone to the calling subscriber, and waits for a while during the current call. Since the notification means for notifying the effect is provided, the calling subscriber can know that the called subscriber is talking even if he / she hears the ringing tone, and even if the answering operation of the called subscriber is delayed, he / she is absent. This has the effect of preventing misunderstanding.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of a call weighting system of the present invention.

FIG. 2 is a block diagram showing a configuration of a conventional call weighting system.

[Explanation of symbols]

 1 Call path switch 2 Central control unit 3 Ring tone trunk 4 Talkie trunk A, B, C subscribers

Claims (3)

[Claims] 1. In a call weighting method of an incoming call service of a telephone call, a subscriber A who is a recipient of the call weighting service is in a call with another subscriber B, and a third call is made to the subscriber A. When the incoming call is received from the subscriber C, the incoming call subscriber A is currently making a call to the third subscriber C, which is the outgoing subscriber, and the ringing tone is generated by the call weighting method. A call-weighting system having a notifying means for notifying that a call is transmitted. 2. The call waiting system according to claim 1, wherein the notification means for notifying the calling subscriber C that the called subscriber A is the call waiting system is a talkie trunk. 3. The call waiting system according to claim 1, wherein the notifying means for notifying the calling subscriber C that the called subscriber A is the call waiting system is constituted by a voice synthesizer.