JPS63187760A - Absence transfer releasing system - Google Patents

Abstract

PURPOSE:To confirm that a user returns to one's seat and to secure the answer to an incoming call after returning by calling a specified extension when a certain time passes after registering an absence transfer and releasing the absence transfer according to the answer of the specified extension. CONSTITUTION:A control part CC1 monitors a timer TIM 4 and repeats calling every a certain time when a telephone does not answer even if ringing is transmitted for a certain time. And by making the telephone off-hook, the absence transfer is released. The telephone which calls in the midst of calling is transferred without answer and the transfer without answer can be automatically released in case of answering while the calling is repeated every specified time. Even it the user forgets the release of the absence transfer, by judging that the specified time passes after registering the absence transfer and calling the registered extension, it can be judged that the user of the registered extension returns to his seal according to whether the extension answers to the calling or not.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a call forwarding release method in a private branch exchange.

(b) Conventional technology Private branch exchanges have a service function called call forwarding. This is a service that transfers incoming calls to another pre-specified extension when the user of the extension is absent. This service is registered in the private branch exchange by dialing the call forwarding special number and the forwarding destination extension number, and P! I-calling is performed by dialing the call forwarding cancellation method from the registered extension.

With the above-mentioned call forwarding method, users sometimes forget to cancel the call forwarding after registering it.Therefore, to prevent this, a system has been proposed in which the call is automatically canceled after a certain period of time has passed (for example, (See JP-A-60-12Q646 and JP-A-60-421866).

(c) Problems that the invention sought to solve With a configuration in which the call is automatically canceled after a certain period of time, missed call forwarding will be canceled after a certain period of time even if the user of the extension has not returned home, and subsequent incoming calls will be canceled. The call will arrive at an extension where there is no one to answer.

The present invention has been made to address the above-mentioned problems, and is intended to provide a system for canceling call forwarding after confirming that the extension user has returned home.

B) Means for Solving the Problems The present invention provides a call forwarding cancellation method for canceling call forwarding in which an incoming call on a predetermined extension is forwarded to another extension by registering a call forwarding call on a predetermined extension. This call forwarding cancellation method is characterized in that when the call elapses, the predetermined extension is called and the call forwarding is canceled in response to a response from the predetermined extension.

(e) Function: When it is determined that a certain period of time has passed since the call forwarding was registered, the extension to which the call forwarding has been registered is called, so whether or not the extension user answers can be determined whether the extension user has returned home or not.

(F) Embodiment FIG. 1 is a block diagram for explaining a missed transfer release method according to an embodiment of the present invention.

In Figure 3, t1+ is the QC (control unit) that controls each part, (
2) is R()M that stores the extension number where call forwarding is registered.
BM (registration memo 'J), (31 stores the extension number to which missed calls are forwarded/r F, M E M (transfer memory)
, (4) is TIM (timer), (5) is the time iT of missed transfer. TIMMEM which is read from IM (4) and stored.
(time memory), (6) is an IR (ringing transmission trunk), and 171 is an 0RT (number receiving unit) that receives dialed numbers. (8) is an RTN (registration confirmation sound transmission trunk) that sends out a registration confirmation sound that indicates that call forwarding has been set; (91 is a DTN that sends out a cancellation confirmation sound that indicates that call forwarding has been canceled); (Release a confirmation voice transmission trunk).

Here, the missed transfer cancellation method according to the embodiment of the present invention will be explained with reference to FIG.

Transition from step (SO) where the telephone (A) is idle to step (Sl) due to off-hook, and the telephone (3) is in the O
It is connected to R'I'+71 and enters the number receiving state. phone(
When A) dials the call forwarding special number and the inner number 'tf of the call forwarding destination, it is received at 0RT (71) and analyzed at CC+11. Then, according to this analysis, the extension number of the telephone (A) is stored in RGMEMi21, and the call is sent to TFIMEMf3j. The extension number of the forwarding destination is memorized and the current time is displayed as TIM.
(It is read out from 41 and stored in TIMMEMf51, and the process moves to step (S2). In step (Sl), the telephone (A) is connected to RT N (81 and a registration confirmation tone is sent out. Here, the telephone (A) is By going on-hook, the process transitions to step (S3) and becomes empty.

At this time, nine calls were made to TRMEM (Hiroshi Nariwa).
3) The call will be forwarded to the extension number of the forwarding destination stored in 3). In the ninth step (S3), oc+i+ is TIM
Monitor f41 and TIMMEM (51?) for a certain period of time (
For example, one hour] If it is determined that the elapsed time has elapsed since the non-response transfer registration, it is determined that the timeout has elapsed and the process moves to step (S4). In step (S4), IRf61 was connected to episode 4 (A) and ringing was being sent. In this state, 0Ofll is T engineering Mf
41 and sends out ringing for a certain period of time, for example, 50 seconds, if the prisoner in episode 4 does not respond, step (S3
) and repeat steps (S6) and (84) like this.
) is repeated at regular intervals (for example, one hour). Then, in step (S4), when the telephone (A) goes off-hook, the process moves to step (S5) and the call forwarding is canceled. Also, in step (35), 4 episodes (4
) to the DTN (91) and sends a release confirmation sound to ``Shi (A)''.

Therefore, the 4 calls received in steps (33) and (84) are transferred without response, but if you answer during the call in step (S4) that is repeated at regular intervals, the transfer without response can be completely automatically canceled. can.

H1 It goes without saying that the above-mentioned fixed time period from registration of absentee forwarding to calling, fixed time period for sending ringing, and fixed time period for repetition may be set arbitrarily.

Alternatively, the telephone (A) may be ringed only once (there is no transition from step (34) to step (S6)), or the number of repetitions may be arbitrarily set instead of a fixed number of repetitions. It's okay.

(G) Effects of the Invention As is clear from the above explanation, even if you forget to cancel call forwarding, when it is determined that a certain period of time has passed after registering call forwarding, the registered extension is called, and the extension responds to this call. It is possible to determine whether the user of the registered extension has returned to his or her desk based on whether or not the extension has been registered.

Therefore, when the user returns home (the user responds), the call transfer is canceled, and when the user is not seated (the user does not respond), the call transfer is disabled.

[Brief explanation of the drawing]

FIG. 1 is a simplified block diagram illustrating the complete missed forwarding cancellation method according to the embodiment of the present invention, and FIG. 2 is a state transition diagram illustrating the entire missed forwarding canceling method according to the embodiment of the present invention. (11...control unit, (2)...registration memory, (
3)...Transfer memory, (4)...Timer, (5)
...Time memory, (6)...Ringing sending trunk, (71...Number receiver is part, (8)...Registration confirmation sound sending trunk, (9)...Sending confirmation sound trunk.

Claims (1)

[Scope of Claims] 1. In a call forwarding cancellation method for canceling a call forwarding in which an incoming call on the predetermined extension is forwarded to another extension by registering a call forwarding call on a predetermined extension, when a certain period of time has elapsed after the registration of call forwarding, the call forwarding is canceled. A call forwarding cancellation method characterized in that the call forwarding is canceled in response to a response from this predetermined extension. 2. The call forwarding cancellation method according to claim 1, wherein if there is no response, the call is made a plurality of times at regular intervals.