JPH0364240A - Variable absence transfer system - Google Patents

Abstract

PURPOSE:To prevent the transfer of a call which is caused by a nonurgent factor by sending the transfer destination number to an extension telephone set or an attendant bard in office to display it there and making a calling subscriber carry out or stop the transfer via a button operation. CONSTITUTION:When the subscriber of an extension telephone 3 or the operator of an attendant board 4 in the office calls an extension telephone 2, a CPU 6 knows that the telephone 2 is kept in an absent state by reference to the contents of a memory area 5 and reads out the telephone number of the transfer destination. Then the telephone number is sent to the telephone 3 or the board 4 and displayed on a display panel. A calling subscriber operates a button for acknowledge of transfer via the telephone 3 or the board 4 when the subscriber desires the transfer. The CPU 6 detects the acknowledge signal produced by the button operation and connects the incoming call of the telephone 2 to the transfer destination. Thus it is possible to prevent such a case a call is sent to the transfer destination although the calling subscriber does not desire the transfer.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a variable call forwarding system, particularly to a variable call forwarding system in a private branch exchange that accommodates a telephone having a display function.

[Conventional technology]

Conventionally, this type of variable call forwarding system allows call forwarding to be registered from each extension telephone to a private branch exchange, and all calls received to the registered extension are unconditionally routed to other designated extensions or It is designed to be forwarded to the relay console.

[Problem to be solved by the invention]

With the conventional variable call forwarding method described above, incoming calls to a registered call forwarder are automatically forwarded to another designated extension or attendant, so even if the caller does not wish to be forwarded, the caller can still receive calls to the forwarding destination. The disadvantage is that the call will arrive at

[Means to solve the problem]

The variable call forwarding system of the present invention is applied to a variable call forwarding system for a private branch exchange that accommodates an extension telephone with a display device and a central branch relay stand, and is provided to a caller who requests connection to an extension telephone set for registration of call forwarding. a sending means for sending display data of registration of call forwarding and a forwarding destination; a receiving means for receiving an acknowledgment signal from a caller who has received the display data; and a receiver for transmitting the caller upon receiving the acknowledge signal. and connecting means for connecting to the other end.

〔Example〕

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

FIG. 1 is a block diagram of an embodiment of the present invention. In the figure, the CPU 6 of the private branch exchange is connected to a memory 9, and the memory 9 contains programs for normal exchange connections as well as
A memory area 5 is provided in which a program for variable call forwarding is stored, and furthermore, data such as the state of absence of extension subscribers and call forwarding destination numbers are stored. Further, the call path switch 1 accommodates a plurality of extension telephones, a relay stand, etc., and in FIG.
A state in which an extension telephone 3 is connected through a subscriber circuit 10 and a central office line relay board 4 through a relay board interface circuit 8 is shown.

Now, when the extension subscriber leaves his/her desk, in the same way as the conventional variable call forwarding registration, the subscriber's extension telephone 2 is off-hook, and after hearing the dial tone, the specified call/call button is pressed or the call is registered. Dial the special number for The subscriber then receives a registration dial tone and then dials the telephone number of the party to whom the call will be forwarded. Therefore, the CPU 6 stores in the memory area 5 of the memory 9 information that the incoming call to the subscriber circuit 7 will be forwarded and the telephone number of the forwarding destination.

After that, the subscriber of the extension telephone 3 or the central office line relay stand 4
When the operator calls the extension telephone 2, the CPU 6 refers to the contents of the memory area 5, learns that the extension telephone 2 of the subscriber circuit 7 is not available, reads the telephone number of the forwarding destination, and calls the extension telephone number. The forwarding destination telephone number is sent to the telephone set 3 or the office line relay stand 4 and displayed on the display board thereof. Therefore, when the caller wishes to transfer the call, he or she operates a transfer approval button provided on the telephone 3 or the office line relay stand 4. CPU
6 detects the acknowledgment signal from this button operation and connects the incoming call to the extension telephone 2 to the forwarding destination.

〔Effect of the invention〕

As explained above, in the variable call forwarding service, the present invention transmits and displays a forwarding destination number on an extension telephone or central office relay stand, and allows the caller to execute/cancel forwarding by operating a button. , the caller can choose to execute or cancel variable call forwarding depending on the importance and urgency of the matter, and even if variable call forwarding is set up in a conference room, etc., the caller can still be forwarded for non-urgent matters. It has the effect of preventing this from happening.

[Brief explanation of drawings]

FIG. 1 is a system configuration diagram of an embodiment of the present invention. 1... Call path switch, 2, 3... Extension telephone, 4
...Station line relay stand, 5...Memory area, 6...C
PU, 7.10...Subscriber circuit, 8...Attendant interface circuit, 9...Memory.

Claims (1)

[Claims] In a variable call forwarding system for a private branch exchange that accommodates an extension telephone with a display and a central office relay stand, a caller who requests a connection to an extension telephone set with call forwarding registration is required to register call forwarding and inform the caller of the forwarding destination. It has a sending means for sending display data, a receiving means for receiving an acknowledgment signal from a caller who has received the display data, and a connecting means for connecting the caller to a transfer destination when receiving the acknowledge signal. A variable call forwarding method characterized by: