JPS63173446A - Absence transfer system - Google Patents

Abstract

PURPOSE:To recognize whether or not an redialed extension is an absence transfer registration extension for a caller by a special call tone by connecting a special call tone sending trunk to the caller extension when the called extension is an absence registration extension. CONSTITUTION:When the extension number of absence transfer is registered in the TRMEM 2 of a received extension number, a SRBT 6 is connected to a telephone set A, and the telephone set B (called extension) of the dialed extension number is called by an IR 7. In this case, since the telephone set A is connected to the SRBT6, it is recognized that the telephone set B is the absence transfer registration extension. Before the TIM3 decides timeout, the specific number to inhibit the absence transfer of the telephone set B is dialed by the telephone set A, then the dial signal is received by an ORT 4, analyzed by a CC1 and a RBT5 is connected to the telephone set A to attain a normal call state.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention provides a no-response transfer method in a private branch exchange (b) Conventional technology A private branch exchange has a no-response transfer function. To do this, the calling extension first dials and calls the nine-way extension, and if there is no response after a certain period of time, the called extension stops ringing, and the pre-registered extension to which the call is forwarded in case of no answer is called and answered. This is a service that starts calls. This type of non-response transfer method is disclosed in, for example, Japanese Patent Laid-Open No. 115659/1983.

3. Problems to be Solved by the Invention In the above-mentioned prior art, the caller is transferred to the registered destination extension after a certain period of time regardless of the caller's intention. Also, the calling party does not know whether the called extension is the extension registered for no-answer forwarding.

The present invention was created in view of the above-mentioned problems, and it is an object of the present invention to provide a no-answer forwarding system that allows the calling party to know whether or not the called extension is registered as a no-answer forwarding extension.

(2) Means for Solving the Problems The present invention provides a non-response transfer method in which a pre-registered extension is called when the called extension does not respond even if the called extension is called for a certain period of time. It is characterized in that it is determined whether or not the extension is registered as a non-response, and if it is determined in this judgment that the called extension is a registered extension as non-response, a special ring tone sending trunk can be connected to the calling extension. This is a non-response transfer method.

(E) Function: The caller can tell by the special ringtone whether the called extension is a registered extension for non-answer forwarding.

(F) Embodiment FIG. 1 is the ninth block diagram illustrating the non-response transfer method according to the embodiment of the present invention.

In the figure (11 is 00 (control unit) that controls each part, (
2) TFIMEM (Transfer Mesosu) to register the extension, (
31 is TIM (timer), (41 is 0FIT (digit receiving section) that receives the digits when dialed, and 00 (11 is QRT ('rRMEM (2) for the extension number received at 41).
If the extension number for non-response transfer is registered in storage area 1, the non-response transfer monitoring state is entered. This state is maintained by TIMf31 for a certain period of time, and if there is no response within a certain period of time, the call is transferred to the extension registered in TRMEM (2+).

In addition, (5) is an RBT (ring tone transmission trunk) that informs the calling extension that the extension is ringing, and <61 is a 5RB that informs the calling party that the extension registered for no-answer transfer is ringing.
T (special ringing transmission trunk), (71 is IR (ringing transmission trunk).

Here, the non-response transfer method according to the embodiment of the present invention will be explained with reference to FIG.

Step (So
) transitions to step [Sl) due to off-hook, and to telephone) is connected to 0RTf41 and enters the digit reception state.

Telephone (N dials an extension number, this dialing signal is received at 0FIT (41 and analyzed at 00111. At this time, the TRMEM of the received extension number is
(If the extension number for non-response forwarding is registered in 2+, the process moves to step (82). In step (S2), 5FtBT (61 is connected to the ti phone (4) and the dialed extension number @) (Called extension) is called by IFI (71. At this time, telephone (4) is 8RB'I'T6)
Since it is connected to the telephone number (G), it can be recognized that the telephone number (G) is the extension registered for no-answer forwarding. Then, when the telephone (A) dials a special number for prohibiting unresponsive transfer of the TIM (telephone@) before the TIM (31 determines timeout), this dial signal is received by the oBr (41) and analyzed by CtOfll, and the step The process moves to (S5).

By the way, it is also possible to transition to step (81) by putting the telephone (5) on-hook before TIM (31 determines timeout).In step (S51, the telephone (A
) is connected to the FJB'rf51 and enters a normal calling state. Here the step (S) is answered by the telephone)
4) and enters into a talking state. Also, step (S2)
When the TIM (31) determines a timeout, the process transitions to step [s5]. In step [S5], the IP address (71) is connected to the transfer destination telephone (C) (transfer destination extension), and the telephone (B) becomes in full status.

(g) Effects of the Invention As is clear from the above description, the present invention allows the calling party to know whether or not the dialed extension is a registered extension for non-answer forwarding by means of the special ring tone. Therefore, if the calling party does not wish to perform no-answer forwarding, he or she can cancel the no-answer forwarding of the called extension.

[Brief explanation of the drawing]

FIG. 1 is a block diagram for explaining the non-response transfer method according to the embodiment of the present invention, and FIG. 2 is a state transition diagram for explaining the non-response transfer method according to the embodiment of the present invention. (11...00 (control unit), (21...TRME
M (transfer memory), (3)...'rIM (timer)
, (4)...0RT (number receiving section), (5)...
・RBT (Ring tone transmission trunk), 161...9R
BT (special ringing trunk), (71...IP(
ringing outgoing trunk).

Claims (1)

[Claims] 1. If the called extension does not respond even if it is called for a certain period of time,
In the no-answer forwarding method that calls a pre-registered extension, the calling extension judges whether the called extension is a registered extension that is not answered, and based on this judgment, the called extension is determined to be a registered extension that is not answered. A no-response transfer method is characterized in that a special ringing tone transmission trunk can be connected to a calling extension when a call is received.