JPH04200093A - Extension selection method - Google Patents

Abstract

PURPOSE:To extend the range of extension selection and to improve the service by searching an idle extension in an extension representative group selected according to the selection priority in the case of selecting an extension. CONSTITUTION:When a PBX 10 detects an incoming call by an extension number, the PBX 10 references a table to discriminate whether or not an extension representative group is arranged as an extension large representative group. When not arranged in such a way, extension representative processing is implemented and when arranged in this way, an extension representative group 1 whose priority is highest in the extension number is selected and an idle extension is sought in the order of extensions B, C, A, D in the order of priority. When an idle extension is in existence, the processing to receive the extension is implemented and when no idle extension is in existence, an extension representative group 3 in a 2nd priority in an extension large representative group I is selected and similarly, an idle extension is sought in the order of extensions H, J, I according to the priority in the extension representative group 3. Thus, the service is improved.

Description

[Detailed description of the invention] Industrial applications The present invention relates to an extension selection method in a private branch exchange.

BACKGROUND OF THE INVENTION As shown in FIG. 4, the conventional extension selection method in a private branch exchange (hereinafter referred to as PBX) is that extensions 8 to M belong to extension representative group 1, and
has extensions N to X, and when there is an incoming call to extension representative group 1, P BX l 00 searches extensions A to M in extension representative group 1 in order to find a vacant extension. Find it and call it there.

Problems to be Solved by the Invention However, in the conventional extension selection method,
When there is an incoming call on loop l, extension representative group 1
The call is only selected from extensions A to M that belong to extension group 1, and if all the extensions in extension representative group 1 are occupied, there is a problem in that it is not possible to receive calls on extensions A to M that belong to extension group 1. .

The present invention solves these conventional problems. When a call is received to a certain extension representative group, 3. If all the extensions are occupied, the incoming call is sent to another extension representative group. The purpose of this invention is to provide an extension selection method that improves service.

Means for Solving the Problems In order to achieve the above object, the present invention organizes extension representative groups into a large extension representative group, prioritizes the extension representative groups within the large extension representative group, and selects an extension. In this method, a vacant extension within the selected extension representative loop is searched according to the selection order.

Operation Therefore, according to the present invention, when a call arrives at the PBX,
First, a certain extension group within the major extension representative group is selected according to a preset priority order, and a vacant extension therein is searched. If there is no vacant extension in that group, the next ranked extension representative group is selected and a vacant extension therein is searched. In this way, a representative group of extensions is selected in turn, an unoccupied extension is found, and the call is received, thereby improving the service.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a flowchart showing the extension selection operation in one embodiment of the present invention, FIG. 2 is a block diagram showing the extension connection state in the PBX of the same embodiment, and FIG. 3 is a table of major extension representative groups in the same embodiment. FIG.

In Figure 2, extensions A, B, C, and D belong to extension representative group 1 of the PBXIO, extensions E, F, and G belong to extension representative group 2, and extensions E, F, and G belong to extension representative group 3. to which extensions H, I, and J belong. As shown in FIG. 3, these three extension representative groups are grouped into three major extension representative groups I, II, and ■, and different priorities are given within each of the major extension representative groups.

The extension major representative group ■ is given an extension number 777, and the priority order is in the order of extension representative groups 1.3.2. Extension number 888 for the main extension group
is given, and the priority is given to extension representative group 2.1.
．． It is in the order of 3. The extension major representative group ■ is given an extension number 999, and the priority order is in the order of extension representative groups 3.2.1.

Furthermore, priorities are also determined for each extension representative group. In other words, the priority order of extension representative group 1 is:
The order is extensions B, C, A, and D. The priority order of extension representative group 2 is extensions G, E, and F, and the priority order of extension representative group 3 is extensions H, J. , I
The order is as follows.

Next, the operation of the above embodiment will be explained with reference to the flowchart of FIG. First, when the PBXIO detects an incoming call from a certain extension number (hereinafter referred to as extension number 777 in this example) (step 11), it refers to the table shown in FIG. It is determined whether the extension numbers are grouped together (Step 12), and if they are not grouped, the conventional extension representative selection process is performed (Step 13). If they are grouped, the extension representative with the top priority for that extension number is selected. The group, in this example extension representative loop 1, is selected (step 14).
), and furthermore, vacant extensions are searched in the order of priority: extensions B, C, , A, and D (step 15). If there is a vacant extension, a process is performed to allow the call to arrive at that extension (step 6), and if there is no vacant extension, the next-ranked extension representative in the extension major representative group ``Loop 3''
is selected (step 19), and in the same way, i in that extension representative group 3 (extension 1-1 according to the priority order) is selected.

A search for vacant extensions is performed in the order of J and I (step 15). In this way, if all the extension representative groups have been selected and a vacant extension is not found among them (step 17),
Busy processing is performed (step 18). This busy processing is
This sends a message to the other party, such as, ``The phone line is currently busy. Please wait a little longer, or call us again later.''

Similar processing operations are performed when there is an incoming call from extension number 888 or 999.

In this way, according to the above embodiment, when a call arrives at a certain extension number and all the extensions in that extension representative group are occupied, the call can be routed to the extension representative group of another number. I can do it.

Effects of the Invention As is clear from the embodiments described above, the present invention organizes the extension representative groups in a private branch exchange into a large extension representative loop, gives priority to the extension representative groups within the large extension representative group, and divides the extensions into When making a selection, an open extension within the selected extension representative group is searched according to the selection order, so when a call is received to a certain extension number, even if all extensions within that extension representative group are occupied. , it is possible to receive a call to a representative group of extensions with other numbers, and this has the effect that the range of extension selection is widened and the service can be improved.

[Brief explanation of the drawing]

Fig. 1 is a flowchart 1 showing the extension selection operation in an embodiment of the present invention, Fig. 2 is a block diagram showing the extension connection state in the PBX of the embodiment, and Fig. 3 is a representative extension line in the embodiment. FIG. 4, which is a diagram showing a group table, is a block diagram showing an extension connection state in a conventional PBX. 10...PBX, 1.2.3...Extension representative group,
I, II, III...Extension major representative groups. Name of agent: Patent attorney Akira Okaji Haga 2 + 23-
-One-wheeled vehicle charge Table γ Roof A-J~-One extension Figure 2＼ P13X 3rd view Figure 4

Claims (1)

[Claims] In addition to organizing the extension representative groups in the private branch exchange into a large extension representative group, a priority order is set for the extension representative groups within the large extension representative group, and when selecting an extension, vacant extensions within the extension representative group are selected according to the selection order. An extension selection method characterized by searching for.