JPH0238032B2 - FUOTOTENSOHOSHIKI - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a no-response transfer system, and more particularly to a no-response transfer system in an automatic exchange having a no-response transfer function.

(Prior art) In general, in this type of automatic switching equipment, the time from when the called party is called until the call is transferred without answer (hereinafter referred to as the transfer without answer time) is either fixed or set by station data. ing. However, in this conventional method, the no-answer transfer time is the same no matter what state all extensions are in. The disadvantage was that it continued.

(Objective of the Invention) The purpose of the present invention is to increase the non-response transfer time by determining that there are responders around the called extension if the number of non-answers is small, and to extend the non-answer transfer time if the number of non-answers is large. It is an object of the present invention to provide a non-response transfer method that eliminates the above-mentioned drawbacks and makes the operation of an automatic exchange smoother by determining that there is a low possibility that there is a responder in the vicinity and shortening the non-response transfer time.

(Structure of the Invention) According to the present invention, in an automatic exchange having a non-response transfer function that automatically calls a predetermined other called party when the called party who is calling does not answer for a certain period of time, A counting means for counting the number of non-responses, and a storage means for storing a plurality of time data that differ depending on the number of non-responses, the number of times corresponding to the number of times matching the number of non-responses from the counting means. A non-response transfer method is obtained, characterized in that time data is read from the storage means and used as a non-response transfer time.

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

FIG. 1 is a block diagram showing an embodiment of the non-response transfer method of the present invention, and FIG. 2 is a diagram showing an example of the memory configuration of the non-response transfer time data storage device in FIG.

In FIG. 1, the automatic exchange has a main switch (hereinafter referred to as SW) 3 that accommodates extension subscribers 11, 12, and 13 via line circuits (hereinafter referred to as LC) 21, 22, and 23, and an inter-extension trunk (hereinafter referred to as IOT).
4, a central control unit (hereinafter referred to as CC) 5, a ringing signal sending unit (hereinafter referred to as RG) 6, and a non-response transfer number counter (hereinafter referred to as RG) that counts the number of times that an extension subscriber whose call has been transferred does not respond in a row. CNT) 8 and
It includes a non-response transfer time data storage device (hereinafter referred to as TDA) 7 that stores predetermined time data for each number of non-response transfers, and a non-response transfer time counting timer (hereinafter TIM) 9 corresponding to the called extension. .
As shown in Fig. 2, the TDA7 consists of n blocks of memory areas 71, 72, ~7n, and each block 71, 72, ~7n has a number of unresponsive transfers.
Predetermined non-response transfer time data T ₁ , T ₂ , .about.Tn are stored corresponding to C ₁ , C ₂ , .about.Cn. Here, assume that the unresponsive transfer times C ₁ , C ₂ , ~Cn are "1", "2", ~ "n", respectively, and the unresponsive transfer time data T ₁ > T ₂ > ~ > Tn. do.

Next, the operation of this embodiment will be explained.

For example, when the extension subscriber 11 receives a call from the extension subscriber 12 (assuming that the extension subscriber 12 has registered the extension subscriber 13 etc. as the non-response forwarding destination), as is generally known, CC5 connects extension subscriber 11 to LC21, SW3, IOT4, SW3, LC
Preparations are made for interconnection to the extension subscriber 12 via the LC 22, and a paging signal is sent from the RG 6 to the extension subscriber 12 via the LC 22. At the same time, the CC5 activates the TIM9, and if the extension subscriber 12 responds before the timeout information is issued from the TIM9, the extension interconnection is completed.

If the extension subscriber 12 does not respond by the timeout, the CC5 prepares a transfer to the extension subscriber 13, i.e., an extension interconnection.
A calling signal is sent from RG6 to extension subscriber 13 via LC23. At this time, CC5 counts up CNT8, so the number of unresponsive transfers becomes "1". Here, CC5 receives the number of unresponsive transfers C ₁ = “1” from TDA7, which matches the number of unresponsive transfers “1”.
Since the non-response transfer time data _T1 corresponding to T1 is selected and read and this time is set in TIM9, TIM
If the extension subscriber 13 responds before the timeout of the CNT 9 times out, the extension interconnection between the extension subscribers 11 and 13 is completed, and the CC 5 resets the CNT 8 (transfer connection). If extension subscriber 1
If CNT3 does not respond, CC5 counts up CNT8 and sets the number of unresponsive transfers to "2".
For example, the unresponsive transfer time _T2 of the memory area 72 is read out from the TDA 7, and the same transfer connection as described above is made to the next unresponsive transfer destination (not shown).

In this embodiment, the non-response transfer operation in extension line interconnection has been described, but the operation when non-response transfer of an incoming call from a central office line or private line is also similar, so a description thereof will be omitted.

(Effects of the Invention) As explained above, the non-response transfer method of the present invention automatically varies the non-response transfer time according to the number of consecutive previous non-response transfers, thereby increasing the number of non-response transfers ( Since the unresponsive transfer time for extensions (where there is a low possibility that there is no one responding) can be shortened, the automatic switching system can operate more smoothly.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the non-response transfer method of the present invention, and FIG. 2 is a diagram showing an example of the memory configuration of the non-response transfer time data storage device in FIG. In the figure, 11, 12, 13... extension subscribers, 21, 22, 23... line circuit (LC), 3
...Main switch (SW), 4...Inter-extension trunk (IOT), 5...Central controller (CC), 6...
Ringing signal sending unit (RG), 7... Non-response transfer time data storage device (TDA), 71, 72, ~
7n...Memory area, 8...Non-response transfer count counter (CNT), 9...Counting timer (TM).

Claims (1)

[Claims] 1. A counter that counts the number of consecutive non-answers in an automatic exchange that has a non-response transfer function that automatically calls a predetermined other called party when the called party does not answer for a certain period of time. and storage means for storing a plurality of time data that differ depending on the number of non-responses, and reads out time data corresponding to the number of times when the number of non-responses from the counting means matches the number of non-responses from the storage means, A non-response transfer method characterized by a response transfer time.