JPH03249896A - Representative selecting system for exchange - Google Patents

Abstract

PURPOSE:To form a representative group against a subscriber line contained in the other exchange in order that a representative selection extending over plural telephone exchanges can be executed by deriving the representative number of the representative group contained in the other exchange, when the representative selection is performed and there is no free line at all, and transferring the call concerned to its number. CONSTITUTION:In the case an exchange 10 receives a representative number A and a call connection is requested, it is retrieved by a representative selection memory 12, and from containing positions B-D of subscribers 31-33 for constituting an intra-office group, a free line of a subscriber line 41 is selected. In the case all of the lines 41 are busy, a transfer destination number E is derived from the representative selection memory 12, informed to a transfer means 13, and the call concerned is transferred to and exchange 20 by the representative number E. The exchange 20 refers to intra-office group containing positions F-H from a representative selection memory 22, selects a free line of a subscriber line 42 and allows it to execute an incoming. In such a way, between plural telephone exchanges, a representative group is formed and the representative selection can be executed.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a representative selection method for an exchange.

[Conventional technology]

In the conventional representative selection system of exchanges, subscriber lines accommodated within one exchange form a representative group. Subscriber lines accommodated in other exchanges cannot be combined into a representative group.

[Problem to be solved by the invention]

The representative selection method of the conventional exchange described above is configured such that a representative group is formed only from subscriber lines accommodated in one exchange, so subscriber lines accommodated in other exchanges are Therefore, for example, if there are multiple exchanges in the same building, there is a problem that even if you want to create a representative group for subscriber lines accommodated in other exchanges, you will not be able to do so. Ta.

An object of the present invention is to provide a representative selection method for an exchange that solves the above-mentioned problems by transferring the call using the representative number of another exchange when all lines are busy in the representative group of one exchange. It is about providing.

[Means to solve the problem]

The representative selection method of a telephone exchange according to the present invention is a representative selection method of a telephone exchange in which a call is received by selecting an available line from among a group of subscriber lines forming a representative group. If there is no vacant subscriber line within the network, the system has representative selection means for selecting a preset representative number to be routed to another exchange in the same representative group, and transfer means for transferring the corresponding call using the selected representative number. .

〔Example〕

Next, the present invention will be explained with reference to the drawings.

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

As shown in FIG. 1, the exchange (1) 10 has representative selection means 113, representative selection means 1) 12, and transfer means 13, and subscriber (B) 31. (c) 32° (D) 33 is connected through the subscriber line 41. The exchange (2) 20 similarly has representative selection means 211 (representative representative selection means 2) 22 and transfer means 23, and subscriber (F) 34. (G)35. (
H) 36 is connected by a subscriber line 42.

Representative selection memory (1) 12 stores in-station group accommodation positions 1FB, C, D and forwarding destination number E for representative number A in advance, and representative selection memory (2) 22 stores in-office group accommodation positions w, F for representative number E. , G, H and transfer destination number "end display" are stored in advance.

That is, subscriber (B) 31. (C)32. (D)33
, (F)34. (G) 35 and subscriber (H) 36 form one representative group by being distributed and accommodated in two exchanges (1) 10° (2) 20.

Next, the operating procedure will be explained with reference to FIG. When the exchange (1) 10 receives the representative number A to one representative group in the exchange (1) 10 and is requested to connect a call, the representative selection means 11 receives the representative number A and stores it in the representative selection memory (1). 1
2 and search for subscribers (B) 31 to (D
)33 accommodation position B.

An empty subscriber line 41 is selected from C and D, but if all the subscriber lines 41 of the representative group are in use, the transfer destination number E is obtained from the representative selection memory (1) 12 and the transfer means 13
to notify. The transfer means 13 transfers the call to the exchange (2) 20 using the representative number E using conventional techniques such as call transfer. Upon receiving the representative number E, the exchange (2) 20 indexes the in-office group accommodation positions F, G, and H from the representative table selection memory (2) 22, selects a vacant subscriber line 42, and receives the call. It becomes possible to form a representative group between a plurality of telephone exchanges, ie, exchange (1) 10 and exchange (2) 20, and select a representative.

When all the subscriber lines 42 of the representative group are in use, the representative selection means 21 indexes the predetermined "end display" as the forwarding destination number, so the forwarding means 23 is not activated and processes all calls. .

In this embodiment, subscribers (B) to (D) and subscriber (F
) to (H) - A representative group is formed by one representative number A, and first, all busy states of subscribers (B) to (D) are detected, and then busy states of subscribers (F) to (H) are detected. Therefore, the functions of the present invention can be achieved by simply adding to the prior art a procedure in which the transfer destination number is stored in advance in the representative selection memory and the representative selection means notifies the transfer destination number to the transfer means.

〔Effect of the invention〕

As explained above, the present invention is configured to carry out representative selection, and when there are no free lines, find the representative number of the representative group accommodated in another exchange, and transfer the corresponding call to that number. This makes it possible to select representatives across multiple telephone exchanges, so when there are multiple exchanges in the same building, it is possible to form representative groups for subscriber lines accommodated in other exchanges.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the representative selection method of an exchange according to the invention. 10.20...Switchboard, 11.21...Representative selection means, 12.22...Representative selection memory, 13.23...
・Transfer means, 31 to 36...Subscriber, 41.42...
-Subscriber line.

Claims (1)

[Claims] In the representative selection method of an exchange that selects an empty line from a group of subscriber lines forming a representative group to receive a call, there is no vacant subscriber line in the representative group for the incoming call to the representative group. In this case, an exchange characterized in that it has an exchange equipped with representative selection means for selecting a representative number to be routed to other exchanges in the same representative group set in advance, and transfer means for transferring the corresponding call using the selected representative number. representative selection method.