JPH0290772A - Additional call method for conference connection - Google Patents

Abstract

PURPOSE:To immediately hold a conference with all replying terminals including conference connection replying to an additional call by storing the replying/ unreplying information of conference connection terminals, and calling an unreplying terminal group by performing a specific number operation at the time of operating the additional call in a single action. CONSTITUTION:The replying/unreplying of conference call terminals A, B1-B5 are stored in a main memory device MEM 9, and all the terminals storing the unreplying are called by performing the specific number operation in a single action when the operation of the additional call is performed to the unreplying terminal, and the terminal having replied is separated transiently from a conference trunk 4. The trunk 4 is used as the conference trunk for replying to the unreplying terminal. In such a way, since all the unreplying terminals are called in a single action by performing the specific number operation at the time of performing the operation of the additional call to the unreplying terminal, it is possible to immediately hold the conference with all the replying terminals including the additional call after holding the conference with a replying slave terminal for plural additional calls.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a conference connection service which is an additional function of an exchange, and particularly to an additional call method thereof.

[Prior Art] In a conventional conference connection service, an additional call operation is performed for each terminal of a group of unresponsive terminals to make them participate in the conference.

[Problems to be Solved by the Invention] The above-mentioned conventional method for additional calls in a conference connection requires an additional call operation to be performed for each unresponsive terminal to participate in the conference, which is time consuming. The drawback is that it is time consuming and troublesome.

[Means for Solving the Problems] The additional call method for conference connection of the present invention stores the response/non-response of the conference call terminal in the conference connection operation, and when performing the additional call operation to the unresponsive terminal, the special number By operation,
All the terminals that are stored as unanswered are called in one operation, the terminals that have already responded are temporarily removed from the conference trunk, and the trunk is used as a conference trunk for responding to the unanswered terminals.

[Function] The response/non-response of the terminals connected to the conference is memorized, and all unanswered terminals are called in one operation by special number operation when additional calls are made to unanswered terminals, so the answerer for multiple additional calls is After holding a conference with a terminal, you can immediately hold a conference with all answering terminals including additional calls.

[Example] Next, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of an exchange using the additional call method for conference connection according to the present invention, FIG. FIG. 3 is a diagram showing the state of conference connection in this embodiment.

As shown in FIG. 1, the exchange 1 has a plurality of conference terminals A,
B, to B5 are connected to the line interface section (LI
F) 2, the path switching section (SW) 3, and the conference trunk (
CFT) 4, register (R) 5, control device interface section (CIF) 6, and various tone unit sections (TO
It consists of an NE) 7, a central control unit (CPU) a, and a main memory (MEM) 9.

The various tone unit sections 7 include dial tone (DT),
Ringing tone (RGT), ringback tone (R
BT), busy tone (BT), message tone v0 for ``please dial the destination number'', message tone V1 for ``Answering terminal'', message tone V2 for ``Please wait for a while'', etc. are available. ing.

As shown in FIG. 2, the main storage device 9 stores the conference parent terminal A that is the conference parent among the plurality of conference terminals A, B, ~B5, the conference raton to be used, and the conference terminal that is the conference child terminal. For each of B and -85, a conference connection data memory section is provided for storing connection destinations, their calling numbers, and response/non-response information.

Next, the operation of this embodiment will be explained with reference to FIG.

When the conference parent terminal A hooks off and hears the dial tone DT (FIG. 3(a)') and operates the special number D0, which is a conference connection, the central controller 8 identifies that it is a conference connection and disconnects the conference parent terminal A. Message tone v0 ``Please dial the destination number'' is sent to the conference trunk 4, and the conference trunk 4 is reserved (FIG. 3(b)). Next, the parent terminal A uses the conference child terminals 81 to
When the BS is dialed, the central controller 8 dials the child terminals B, -
85, and sends a ringback tone RBT to the parent terminal A (see Fig. 3).
C)). In addition, when there are fewer than 5 terminals to call, special number D1 is used.
operate. Child terminal B in response to a call from terminals 81 to B5
When B2 responds, the central controller 8 sends a message tone v1 to the parent terminal A, ``There is a responding terminal.''
Furthermore, message sound v2 "Please wait for a while" is sent to the responding terminal B,,B,, and the responding terminal B,.

B2 is connected to the conference trunk 4 (FIG. 3(d)). Next, when parent terminal A performs a hooking operation, parent terminal A is also connected to conference trunk 4, and a conference between terminals A, B, . . . B2 is started (FIG. 3(e)). At this time, in the conference connection data memory section of the main storage device 9, as shown in FIG.
It is remembered that s is unresponsive. Next, when the parent terminal A performs hooking in this conference state, the central control unit 8 identifies an additional call operation, sends a dial tone DT to the parent terminal A, and responds to the answering terminal B.

B2 has message sound v2 "Please wait for a while"
(Fig. 3(f)). Next, the parent terminal A has special number D.
2, the central control device 8 identifies that the call is an additional call for all unanswered terminals, detects the unanswered terminals 83 to B5 from the conference connection data memory section, and sends a ringing tone RGT to make the call. , sends a ringback tone RBT to the parent terminal A, and also sends a ringback tone RBT to the child terminal BB,
sends the message f (V 2 r Please wait for a while) to separate the conference trunk 4 from the conference trunk 4 (Fig. 3 (g)). In this case, when the non-responsive terminals B, ~BS) respond, the central controller 8 sends a message sound ■1 "Answering terminal was found" to the parent terminal A, and calls the child terminals 83 to B5 that have responded by making an additional call. Connect to trunk 4 (Figure 3 (
h)). Next, when parent terminal A performs a hooking operation, parent terminal A is connected to conference trunk 4, and parent terminal A and child terminal 8
There will be a meeting with 3-B5 (Figure 3 (j)). However, if there is a terminal that has not responded to this additional call, the unanswered terminal will not be connected.

When the parent terminal A hooks again, the central control unit 8 connects the child terminals Bl and B2, which were on hold for 1 meter, to the conference trunk 4, and connects the parent terminal A and all responding terminals with the message tone v2 "Please wait for a while". This will result in a conference connection with (Fig. 3 (k)).

[Effects of the Invention] As explained above, the present invention stores response/non-response information of conference-connected terminals in a conference connection, and calls a group of unresponsive terminals at once by operating a special number during an additional call operation. This has the effect that a conference can be immediately held with all responding terminals including conference connection terminals that have responded to the additional call.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of an exchange using the additional call method for conference connection according to the present invention, FIG. FIG. 3 is a diagram showing the state of conference connection in this embodiment. l...Exchange (EX), 2...Line interface section (LIF), 3...
Call path switching unit (SW), 4...Conference trunk (CFT), 5...Register (R). 6...Control device interface section (CIF), 7...
- Various tone unit sections (TONE), 8... Central control unit (CPU), 9... Main memory device (MEM), A, B, ~B5... Conference terminal. Figure 2 Figure 1 Figure 3

Claims (1)

[Claims] 1. In the exchange, in the conference connection operation, the response/non-response of the conference call terminal is stored, and when performing an additional call operation to the unanswered terminal, the non-response is stored by special number operation. An additional call method in a conference connection, in which all terminals currently responding are called in one operation, terminals that have already responded are temporarily removed from the conference trunk, and the trunk is used as a conference trunk for responding to unanswered terminals.