JPH0331029B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an automatic switchboard having a conference call function.

2. Prior Art Automated exchanges having a conference call function have been known for some time, but in this case, when making a conference call, the caller convening the conference dials each participant in the conference, and the caller dials the participants' responses. Notify the subscriber that a conference call will be held, temporarily put the subscriber's telephone line on hold, and call the other participants one after another.
It was necessary to call all participants.

Problems to be Solved by the Invention Therefore, with this type of system, it takes a lot of effort and time for the subscribers to convene a conference, and it is extremely inconvenient for the participants in the conference call, as they are forced to wait for a long time. It was hot.

The present invention eliminates these drawbacks, and reduces the effort of subscribers to convene a meeting with a simple configuration.
The purpose of this invention is to provide an excellent automatic switching machine that can greatly reduce time.

Means for Solving the Problems In order to achieve the above object, the present invention allows a subscriber convening a conference, such as a conference call organizer, to input the calling dial number of each person who wants to participate in the conference call prior to the conference call. Just by registering it in the memory through the organizer's phone, it will automatically dial the people you want to participate in the registered order one after another, calling the above participants, and you can continue calling the conference call forever. For participants who do not respond to the request, the conference call organizer can arbitrarily cancel their participation by dialing.

Effects Therefore, according to the present invention, it is possible to greatly reduce the labor and time of subscribers who convene a meeting.

Embodiment FIG. 1 is a block diagram of a portion related to a conference call of an automatic exchange that is an embodiment of the present invention, and FIG. 2 is an explanatory diagram showing the contents stored in the memory section of the automatic exchange.

In the figure, 1 is a telephone for the host and participants of the conference call, 2 is a subscriber circuit that detects incoming and outgoing calls from telephone 1, supplies current, sends out tones, etc., and 3 is a circuit for making calls with multiple telephone subscribers. 4 is a central control unit that controls all operations of the exchange, such as conference calls, based on the information from the subscriber circuit 2; 5 is a writing/reading unit necessary for controlling the central control unit 4; A memory section 6 for storing data is a telephone network for connecting telephone calls under instructions from the central control section 4.

The operation of making a conference call using this automatic exchange will be described below.

When a telephone subscriber wants to make a conference call, he or she takes the telephone 1 off-hook and first dials a number for the conference call. This information is transmitted to the central control unit 4 via the subscriber circuit 2 connected to the telephone 1. The central control unit 4 checks the status of the conference call trunk 3, and if it is available, instructs the subscriber circuit 2 to send out a tone to the telephone 1 indicating that it is available. In this state, dial the calling numbers of all the members who want to participate in the conference call from the telephone 1. Each dialed number is notified from the subscriber circuit 2 to the central control section 4, and the numbers are registered in the memory section 5 in the order in which they were dialed, as shown in FIG.

When all the dial numbers have been dialed and registered in the memory section 5, the number indicating the dial number (dial end number) is then dialed. When the dialing end number is dialed, it is sent to the central control unit 4.
, and an incomplete tone is sent from the subscriber circuit 2 to the telephone 1 that called the conference in response to an instruction from the central control unit 4.

Subsequently, the subscriber numbers registered as shown in FIG. be done. In this way, the subscriber numbers are sequentially read out from the memory section 5, and a ring tone is sent to each corresponding telephone set 1.

When the called participant goes off-hook from the telephone 1 in this state, the subscriber circuit 2 notifies the central control section 4 of this, and the central control section 4 registers information to the effect that there was a response in the memory section 5, and also registers the information indicating that there was a response. An instruction to connect the subscriber circuit 2 of the telephone set 1 and the conference call trunk 3 is given to the telephone network 6 for connection.

Now you can make a call between the conference call host and the participants. In this way, the registered subscribers participate in the conference call one after another, and their participation status is registered in the memory section 5. However, if there is no response from the participant whose subscriber number is registered, the presence or absence of a response remains null, and the subscriber circuit 2 continues to send an incomplete tone to the conference call organizer. .

If all the registrants respond, all the responses will become YES, and the central control unit 4 will cause the subscriber circuit 2 of the conference call organizer to stop sending out incomplete tones.
to notify. If a conference call participant does not respond due to absence, etc., the conference organizer dials a cancellation number when listening to the incomplete tone, and the conference call that was not responded due to absence etc. is stored in the memory section 5. A participant's subscription number can be easily canceled. That is, when a cancellation number is dialed, that information is transmitted to the central control unit 4, and under the control of the central control unit 4, the number of the subscriber who did not respond is canceled and the ringing tone for the telephone 1 is changed. This will instruct the subscriber circuit 2 to stop sending and sending incomplete tones, and only those participants who respond will be able to start the conference call.

Effects of the Invention As described above, according to the present invention, if the conference call organizer first dials the dial number of the participant he or she wants to join, all participants are then automatically called. Since a conference call is established with the participant who responded without interrupting the call from the time of response, there is no hold period for the participant, and the status of the response is always known, making it possible to conduct an efficient conference call.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an automatic switching system according to an embodiment of the present invention, and FIG. 2 is a diagram showing the contents of the same memory. 1...Telephone, 2...Subscriber circuit, 3...Conference call trunk, 4...Central control section, 5...Memory section, 6...Telephone network.

Claims (1)

[Claims] 1. A means for checking the status of a conference call trunk when receiving information for a conference call from a subscriber who wants to convene a conference, and a means for checking the status of a conference call trunk from a subscriber who convenes a conference if the conference call trunk is available. a memory for registering the dial number of the subscriber participating in the conference; a means for automatically dialing the dial number of the subscriber participating in the conference registered in the memory to call the subscriber participating in the conference; means for forming a call loop between the telephone set and the telephone set of the subscriber convening the conference; and at the end of registering the dialing signal in the memory, it begins to send an incomplete signal to the subscriber convening the conference, and calls the subscriber convening the conference. If there is no response from the called subscriber, the subscriber continues to send the incomplete signal and if there is a response from all called subscribers, or the subscriber calls the conference based on the hearing of the called incomplete signal. means for stopping the transmission of incomplete signals by a cancel signal from a subscriber who calls a conference based on hearing the incomplete signal, and registering dial numbers of conference participants who do not respond from the above memory by a cancel signal from a subscriber who calls a conference based on hearing the incomplete signal. and means for stopping calls to the unresponsive subscriber.