JPS6166455A - Extension representative group no answer transfer system - Google Patents

Abstract

PURPOSE:To make incoming call efficiently by calling other telephone set in the same extension representative group when a telephone set included in an extension representative group is called and does not give an answer for a specified time. CONSTITUTION:When a calling telephone set 1 calls, a ringing tone is sent from an originating register 6 through a main switch 3. When the calling telephone set 1 dials the extension number of a terminating telephone set 21, a CPU8 controls the main switch and connects the calling telephone set 1 and the terminating telephone set 21 to a ringing tone sending device 4 and a call signal device 7, and at the same time, starts a time controlling device 10. If the terminating telephone set 21 does not give an answer and the time controlling device 10 becomes time-out, the CPU8 calls terminating telephone sets 22, 23 included in the same extension representative group successively.

Description

[Detailed description of the invention] (Technical field) The present invention relates to an extension representative group non-response transfer system.

(Prior art) In a conventional automatic switchboard, if a telephone included in one representative extension group does not respond for a certain period of time even if the telephone is called, even if other telephones in this representative extension group are ready to answer. The drawback is that you cannot call the phone and make a call.

(Object of the Invention) The object of the present invention is to solve the above-mentioned drawbacks by calling other telephones in the extension representative group when a telephone included in the extension representative group does not respond for a certain period of time even if it is called. remove,
It is an object of the present invention to provide an extension representative group non-response transfer system that efficiently transfers incoming calls to available telephones.

(Structure of the Invention) According to the present invention, there is provided a non-response detection means for detecting that a certain telephone that constitutes an extension representative group is unresponsive for a certain period of time after receiving an incoming call; and a transfer means for transferring the incoming call to another telephone belonging to the extension representative group based on the output of the means.

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

The figure is a block diagram showing an embodiment of the extension representative group non-response transfer system of the present invention.

In the figure, the automatic exchange is a general main switch (hereinafter referred to as MSW) accommodating a calling telephone 11, a calling telephone 21, 22.23t, and 3. Ringing tone sending device IIt (hereinafter referred to as 几B
T)4. Internal trunk (hereinafter referred to as 10T) 51 Outgoing register (hereinafter referred to as 0R) 5. Call signal system K (hereinafter referred to as GT)
7. Central control unit! (hereinafter referred to as CPU) 8. The CPU 5 includes a data memory unit (hereinafter referred to as DMU) 9, and a time control unit (hereinafter referred to as TCU) 10j which detects that the non-response time of the incoming telephone 21, 22, 23 exceeds a certain period of time.
゛Connected. Note that the incoming telephones [21, 22, and 23 belong to the same extension representative group, and their extension representative group data is stored in DMU9.
is stored in a predetermined area in advance.

Next, the operation of this embodiment will be explained.

When the calling telephone aA1 makes a call, a dial tone from the ORs is sent via the MSW3, as is generally known.

Thereafter, when the calling telephone 1 dials the extension number of the called telephone 21, the CPU 8, which has received the reception result by the OR 6, controls the MSW 3 to dial the extension number of the calling telephone 21. The N-call power packer 21 is connected to R, BT4 . Since the 'I'CUIO is activated while connecting to the RGT 7, the bell of the called telephone 21 rings and the TCUIO starts counting the non-response time. In this state, when a preset time has elapsed and the TCUIO times out, the CPU 8 is activated. At this time, if the called telephone 21 responds within the set time, the TCUIO stops counting the time and performs normal processing, so the 1-calling type telephone 1 and the called telephone 21 are connected and the call is completed. It becomes possible. C.P.
When U5 recognizes that it is started from TCUlo,
The information of the called telephone 21 and the called telephone 22 included in the same extension representative group is read from the DMU 9, and the MSW 3 is controlled to send a ringing signal from the GT 7 to the called telephone 22, and at the same time activates the TCUI O. .

If the called telephone 22 responds before TCUIO times out, the υ calling telephone 1 is set to MSW under the control of the CPU 5.
It is connected to the called telephone 22 via J, l0T5 and a conversation is made. If the called telephone 22 does not respond by the time TCUlo times out, the called telephone 23 of the same extension representative group will be called in the same process.

In this embodiment, an explanation has been given of an incoming call to an extension line to the incoming telephone set 21, but incoming calls from an outside line (not shown) are similarly transferred in the event of no answer.

(Effects of the Invention) As explained above, in the extension call no response transfer method of the present invention, even if a certain telephone belonging to the representative group of extensions of an automatic exchange is called and the telephone does not answer, after a certain period of time, Other phones within that extension representative group will be called, so
This has the effect of enabling highly efficient automatic exchange processing.

[Brief explanation of the drawing]

The figure is a block diagram showing an embodiment of the extension representative non-response transfer system of the present invention. In the figure, 1... Calling telephone, 21, 22, 23... Calling telephone, 3... Main switch (MSW), 4... Calling. Sound sending device (
几B'r), 5...Internal trunk (IOT)
, 6... Transmission register (0 几), 7...
・Call signal device (GT), 8...Central control unit (CPU), 9...Data memory device (D
MU), 10... Time control unit (TCU). , Par Agent Patent Attorney Susumu Uchihara ゛゛＼〜,−

Claims (1)

[Claims] non-response detection means for detecting that a certain telephone constituting the extension representative group is unresponsive for a certain period of time from when the telephone receives an incoming call; and a transfer means for transferring the incoming call to the telephone set.