JPS6179354A - System for transferring non-answered call - Google Patents

Abstract

PURPOSE:To shorten the non-answered call transferring time of an extension which makes no answer many times so as to use an automatic exchange smoothly, by automatically making the non-answering call transferring time variable in accordance with a previously experienced continuous non-answer call transferring number of times. CONSTITUTION:When an extension subscriber 11 calls up another extension subscriber 12, a central controller (CC)5 actuates a timer (TIM)9 for counting non-answered call transferring time and, when the called subscriber 12 does not make any answer until time-out information is issued from the TIM9, sends a calling signal to an extension subscriber 13. At the same time, the CC5 sets another counter 8 for counting non-answered call transferring frequency to a count-up condition. The CC5 selectively reads out non-answered call transferring time data T1 corresponding to a non-answered call transferring frequency from a non-answered call transferring time data storage device (TDA)7 and sets the readout time in the TIM9, and then, connects the subscribers 11 and 13 with each other through the extension if the subscriber 13 answers until the TIM9 attains to time-out.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a no-response transfer system, and particularly to a set of no-response transfer blades V 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 no-answer transfer is performed (hereinafter referred to as no-answer transfer time) is either fixed or determined by station data. υ is set. However, in this conventional method, the no-answer transfer time is the same no matter what state all extensions are in, so even if there is no possibility that there are any answerers around a certain called extension, it will be difficult to call for a certain period of time. The disadvantage was that it continued.

(Objective of the Invention) The object of the present invention is to determine that there are responders around the called extension if the number of unanswered calls is small, and to lengthen the unanswered transfer time.
In addition, if the number of unanswered calls is large, it is determined that there is a low possibility that there is a responder around the called extension, and the unanswered transfer time is shortened, thereby eliminating the above disadvantages and making the operation of the automatic exchange smoother. The objective is to provide a response transfer method.

(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 times of non-response, and a stacking means for storing a plurality of time data that differ depending on the number of times of non-response, and corresponds to the number of times when the number of times of non-response matches the number of times of non-response from the counting means. A non-response transfer method is obtained which is characterized in that the time data for the non-response transfer is read out from the above-mentioned means and used as the 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. 1.

In FIG. 1, the automatic exchange connects extension subscribers 11 and 1 via line circuits (hereinafter referred to as LC) 21, 22, and 23, respectively.
2.13, a main switch (hereinafter referred to as 5W) 3, an extension mutual trunk (hereinafter referred to as IO'l') 4, a central control unit (hereinafter referred to as CC) 5, and a ringing signal sending unit (hereinafter referred to as RG) 5. and a non-response transfer counter (hereinafter referred to as CNT) 8 that counts the number of times the extension subscriber to whom the call was transferred did not respond in a row.

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 referred to as TIM) 9 corresponding to the called extension.

As shown in FIG. 2, the TDA 7 has n blocks of memory areas 71, 72 . From ~7n, each block 71, 72
．． ~7n are the number of unresponsive transfers C1, C2, ~Cn, respectively.
Non-response transfer time data Tl predetermined corresponding to
, T2. ~Tn is remembered. Here, the number of unresponsive transfers C1, C2, ~Cn are respectively II 1 u,
It is assumed that II 2 If, ~II n11 and non-response transfer time data T1) T2>~>Tn.

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
．． l0T4. Extension subscriber 12 via SW3゜LC22
At the same time, preparations are made to connect the extension lines to each other, and a calling signal is sent from the box G6 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 CC 5 prepares a transfer to the extension subscriber 13, that is, an extension reciprocal connection, and sends a paging signal to the extension subscriber 13 from the box G6 via the LC 23. At this time C
Since C5 counts up CNTs, the number of unresponsive transfers reaches 11111. Here, CC5 selects and reads out the unresponsive transfer time data Tl corresponding to the unresponsive transfer number 01=II II which matches the unresponsive transfer number 1+111 from rDA7 and sets this time in TIM9, so TI-" - If extension subscriber 13 responds before M9 times out, extension interconnection between extension subscribers 11 and 13 is completed and C
C5 resets CNT8 (transfer connection). If the extension subscriber 13 does not respond by the timeout, C
C5 counts up CNT8 to set the number of unresponsive transfers to 11211, reads out the unresponsive transfer time T2 of the memory area 72 from KTDA7, and performs the same process as described above to the next unresponsive transfer destination (not shown). Make a transfer connection.

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. Since it is possible to shorten the unresponsive transfer time for extensions (where there is a low possibility of being interrupted), the automatic switchboard 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 originating device in FIG. 1. In the figure, 11. 12. 13... Extension subscriber, 21.22.23... Line circuit (
LC), 3...Main switch (SW), 4 Output
- Inter-extension trunk (IOT), 6...Central control unit (CC), 6...Call signal sending unit) (
RG), 7...Non-response transfer time data hoisting device 1i (TDA), '11,72°~7n...Memory area, 8...Number of non-response transfers counter(
CNT), 9...Counting timer (TM). child 1 day

Claims (1)

[Claims] In an automatic switching system having 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, a counting means counts the number of consecutive non-answers. and storage means for storing a plurality of time data that differ according to 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 transfer time.