JPH03237854A - Service system for accepting incoming call during busy state - Google Patents

Abstract

PURPOSE:To recognize a caller and its business item even when a called party does not reply by giving two subscriber lines for each subscriber, connecting a telephone set for both outgoing and incoming calls to a 1st line, connecting an incoming call exclusive automatic answering telephone set to a 2nd line and allowing an exchange to connect the incoming call to the 1st line with priority. CONSTITUTION:Subscriber lines 2, 3 are connected to a subscriber 1, a telephone set 4 is connected to the subscriber line 2 and an automatic answering telephone system 5 for exclusive use of an incoming call is connected to the subscriber line 3. When a call from the 2nd subscriber is received while the subscriber 1 is busy, an exchange 6 connects a signal source 9 to the subscriber line 2 at first by interruption and sends a signal tone representing an incoming call during busy state for a prescribed time. When the subscriber 1 desires a usual call waiting service, the subscriber 1 hooks off and the exchange 6 connects an incoming trunk (ICT) 8 to the subscriber line 2. Moreover, when the subscriber 1 does not reply a call for a prescribed time, the exchange 6 connects the ICT 8 to the subscriber line 3. Thus, the called party recognizes the presence of an incoming call and recognizes a caller and a business items without reply.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a call waiting service system, and more particularly to a call waiting service system that provides two subscriber lines to each subscriber.

[Conventional technology]

In the conventional call waiting service system, when a call arrives during a call, the called party hears the incoming call service tone, switches the connection by hooking the called party, puts the current caller on hold, and then calls the next caller. Call waiting services are mainly used. Furthermore, when multiple lines are provided to a subscriber, subsequent calls are made to be received by other telephones as representative telephones.

[Problem to be solved by the invention]

In the conventional call waiting service system described above, if the called party does not answer, the caller and the message are unknown, so the call is of no use. Therefore, the caller who is currently on the call is forced to put the call on hold. , if the caller is unable to communicate with the later caller, the caller will not be able to answer; on the other hand, from the perspective of the later caller, the caller will be considered absent because the caller does not answer even though the caller is calling. There is a problem. In addition, when giving multiple lines to subscribers, multiple telephones and personnel are required, and if there is only one person present, the person on the other end of the call is put on hold, similar to a call waiting service, and called back later. Since the call will be made with the caller, there are exactly the same problems.

An object of the present invention is to provide a call waiting service system that allows the called party to know that there is an incoming call, and also to know the caller and the business even if the called party does not answer. be.

[Means to solve the problem]

In the call waiting service system of the present invention, each subscriber is provided with two subscriber lines, the first line is connected to a telephone set for both making and receiving calls, and the second line is equipped with an answering machine exclusively for receiving calls. and the exchange routes incoming calls for said subscriber to said first
connect the incoming call to the second line preferentially, connect the incoming call to the second line only when the first line is busy, and at the same time emit a signal tone to indicate the incoming call is busy on the first line. This is the configuration for sending out.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

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

FIG. 1 shows the case where the present invention is applied to an analog subscriber line. Subscriber 1 is provided with subscriber line 2.3, a telephone set 4 is connected to subscriber line 2, and subscriber line 3 is connected to subscriber line 2. is connected to an answering machine 5 exclusively for receiving calls. The exchange 6 has subscriber lines 2 and 3, an outgoing trunk (hereinafter referred to as OGT) 7, an incoming trunk (hereinafter referred to as ICT) 8, and a signal source 9 that generates a signal tone indicating an incoming call. Accommodating communication path 1
Contains 0.

Next, the operation will be explained.

When subscriber 1 makes a call from telephone 4 and receives an incoming call from a second subscriber (not shown) via ICr2 while talking with a first subscriber (not shown) via 0GT7, the exchange 6 first causes the signal source 9 to interrupt the subscriber line 2, and emits a signal tone indicating an incoming call for a certain period of time. Here, if subscriber 1 desires a normal call waiting service, he hooks up, and exchange 6
Connect T8 to subscriber line 2. Furthermore, if the subscriber 1 does not respond within a certain period of time, the exchange 6 connects the ICT 8 to the subscriber line 3. Thereby, the second subscriber can connect to the answering machine 5 via the subscriber line 3 and send a message regarding the matter.

FIG. 2 is a block diagram of a second embodiment of the invention.

FIG. 1 shows the present invention in which the subscriber line configuration is 28+D.
The case is shown when applied to a DN subscriber line. Subscriber 21
is given a subscriber line 22 with a configuration of 28+D, and the first channel in the subscriber line 22 (hereinafter referred to as CHA)
A telephone set 24 is connected to the subscriber line 22, and an answering machine 25 for incoming calls is connected to a second channel (hereinafter referred to as CHB) in the subscriber line 22. , 0GT27, ICT28, and signal source 2
9.

Next, the operation will be explained.

Similarly to the first embodiment, subscriber 21 makes a call from telephone 24, and while talking to a first subscriber (not shown) via 0GT 27, calls to a second subscriber (not shown) via ICT 28. When receiving an incoming call from the subscriber line 22, the exchange 26 first causes the signal source 29 to interrupt the CHA in the subscriber line 22, and emit a tone for a certain period of time indicating that the call is waiting. If the subscriber 21 desires a normal call waiting service, the subscriber 21 performs hooking, and the exchange 26 connects the rcT.
28 to the CHA in subscriber line 22. Also, if the subscriber 21 does not respond within a certain period of time, the exchange 2
6 connects the ICT 28 to the CHB in the subscriber line 22. Thereby, the second subscriber can connect to the answering machine 25 via the CHB in the subscriber line 22 and message the answering machine 25.

〔Effect of the invention〕

As explained above, in the present invention, each subscriber is provided with two subscriber lines, the first line is connected to a t-mail machine for both incoming and outgoing calls, and the second line is equipped with an answering machine for incoming calls only. device, and the exchange preferentially connects the incoming call to the subscriber to the first line, so that the called party knows that the call has arrived, and even if the called party does not answer, This has the effect of making it possible to know the sender and the purpose.

[Brief explanation of drawings]

The first drawing is a block diagram of a first embodiment of the present invention, and FIG. 2 is a block diagram of a second embodiment of the present invention. 1.21...Subscriber, 2,3.22...
・Subscriber line, 4,24...Telephone, 5.25・
...Answering machine, 6,26...Switchboard, 7,27...Outgoing trunk (OCT),
8.28... Incoming trunk (ICT), 9.2
9...Signal source, 10.30...Communication path.

Claims (1)

[Claims] Each subscriber is provided with two subscriber lines, the first line is connected to a telephone for making and receiving calls, the second line is connected to an answering machine for receiving calls, and the exchange is used to handle calls for the subscriber. connect calls preferentially to said first line, connect an incoming call to a second line only when said first line is busy, and at the same time connect an incoming call to said first line; A call waiting service system that is characterized by sending out a signal tone to be displayed.