JPH02238760A - Extension holding system - Google Patents

Abstract

PURPOSE:To eliminate the need for waiting re-reply while listening to a holding tone with a handset hooked off by allowing the operator of an extension telephone set subject to holding to recognize the re-reply of a holding extension telephone set through the ringing of a ringer of the extension telephone set subject to holding. CONSTITUTION:While an extension telephone set 2 applies 2-party talking with an extension telephone set 3 via a line circuit 4, a channel 7 and a line circuit 5, when the extension telephone set 3 makes holding to hold the talking of the extension telephone set 2, the extension telephone set 2 subject to holding depressed a prescribed function button to hook on the handset, then the waiting operation is attained. When the holding extension telephone set 3 applies re-reply operation to the extension telephone set 2 subject to holding, a ringer of the extension telephone set subject to holding rings to inform the re-reply. Thus, it is not required from the operator of the extension telephone set 2 subject to holding to await the re-reply while keeping on-hook and listening to the holding tone.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to an improvement in an extension holding system in an automatic exchange.

[Prior Art] In the conventional extension hold system, the party on hold (extension telephone on hold) listens to the hold tone sent from the exchange until the party on hold (extension telephone on hold) answers again. [Problem to be Solved by the Invention] For this reason, the operator of the extension on hold must wait in an off-hook state while listening to the hold tone until the extension on hold answers again. This has the drawback of being inconvenient and time-consuming.

[Means to solve the problem] The extension holding system of this invention has the following means.

a) Means for detecting that a predetermined function button on the held extension has been pressed; b) Means for prohibiting incoming calls to the held extension from a telephone other than the held extension; C) When the held extension has re-answered. A means of causing the ringer of the extension telephone to ring when the telephone is on hold.

[Operation] Since the ringer of the held extension telephone rings when the held extension telephone answers again, the operator of the held extension telephone recognizes that the held extension telephone has answered again by the ringing of the held extension telephone.

[Example] Next, this invention will be explained with reference to the drawings. The figure is a block diagram of an automatic exchange in an embodiment of the extension holding system of the present invention.

1 is an automatic exchange that accommodates a plurality of telephone extensions, and 2 and 3 are extension telephones connected to the line circuit 4.5.
Reference numeral 6 denotes a holding music sending circuit that sends out holding music according to instructions from the CPU 8, and 7 a line circuit 4.5 that sends out holding music according to instructions from the CPU 8.
and a switch 7a that interconnects the held music sending circuit 6.
and 7b, and 9 is a memory for storing operation information of the extension telephones 2 and 3. Further, the CPU 9 exchanges information with each section of the above-mentioned line circuits 4 and 5, communication path 7, and memory 9, and controls these sections by giving instructions to each section.

Next, we will explain the operation. It is now assumed that the extension telephone 2 is conducting a two-party conversation with the extension telephone 3 via the line circuit 4, the communication path 7, and the line circuit 5. At this time, line circuits 4 and 5 are connected by switch 7a of communication path 7. Here, when the extension telephone 3 performs a hold operation to put the call with the extension telephone 2 on hold, that is, when the hold button is pressed, the CPU 8
detects a signal via the line circuit 5 without realizing that the hold button has been pressed. As a result, the CPU 8 opens the switch 7a of the communication path 7 to disconnect the line circuits 4 and 5, and also opens the switch 7b of the communication path 7.
The line circuit 4 and the hold tone sending circuit 6 are connected. Then, the CPU 8 controls the held tone sending circuit 6 to send the held tone from the held tone sending circuit 6 to the extension telephone 2 on the held extension side via the line circuit 4.

At this time, when the extension telephone 2 on the held extension side performs a standby operation, that is, the standby button is pressed and goes on-hook, the CPU 8 receives a signal indicating that the standby button has been pressed via the line circuit 4. . This allows the CPU
8 stores information indicating that a standby operation has been performed on the extension telephone 2 in the memory 9, and opens the switch 7b of the communication path 7 to stop sending out the hold tone from the hold tone sending circuit 6 to the extension telephone 2. Let. After the above-described standby operation is performed on the extension telephone 2, if a call is received from an extension other than the extension telephone 3 to the extension telephone 2, this incoming call is processed as busy under the control of the CPU 8 and connected to the extension telephone 2. Not done.

When the extension phone 3 on the holding extension side performs a re-answer operation for the held call on the extension phone 2, that is, when the hold button is pressed again and the hold on the extension phone 2 is released, the CP
After detecting a signal indicating that the hold button has been pressed again, U8 reads information indicating that the extension telephone 2 is on standby from the memory 9, and transmits the information to the extension telephone 2 via the line circuit 4. Ring the ringer and call extension 3.
Notifies the operator of the waiting extension telephone 2 that the telephone has responded again. When the extension telephone 2 goes off-hook and responds, the CPU 8 connects the line circuit 4 and the line circuit 5 of the communication path 7 by the switch 7a. As a result, extension telephone 2 and extension telephone 3 return to the initial two-party conversation state again.

In addition, as mentioned above, when the standby operation is performed on the extension telephone 2 and the off-footer is performed on this extension telephone 2,
Under the control of the CPU 8 which has detected this off-hook, the switch 7b of the communication path 7 is connected and the hold tone is sent from the hold tone sending circuit 6 to the extension telephone 2. That is, the extension telephone 2 returns to the same state as when it was initially put on hold by the extension telephone 3. At this point, if this extension telephone 2 is turned on-hook, the standby operation can be restored, and the operation is exactly the same as in the above case. That is, when the extension telephone 3 repeats the response, the switch 7a of the communication path 7 is connected under the control of the CPU 8 which detects this, and the extension telephone 2 and the extension telephone 3 return to the initial two-party conversation state again. .

[Effects of the Invention] As explained above, in the extension holding system of the present invention, a standby operation is performed by pressing a predetermined function button on the held extension telephone to go on-hook, and the on-hold &l telephone When you perform a re-answer operation on the telephone,
The ringer on the held extension's telephone rings to notify you that you should answer again. Therefore, the operator of the extension on hold must wait until the ringer of the extension on hold rings to indicate that the extension should answer again.
Since you can do other work, you can use your time effectively, and unlike in the past, you no longer have to listen to hold music while waiting for a response while off-hook.

[Brief explanation of drawings]

The figure is a block diagram of an automatic switchboard in one embodiment of the extension holding system of this invention. 2.3... Extension telephone, 4, 5... Line circuit, 6
... Hold tone sending circuit, 7... One call path, 8... -CP
U, 9...Memory.

Claims (1)

[Scope of Claims] In an extension holding system in an automatic exchange accommodating a plurality of extension telephones each having a function button, means for detecting that a predetermined function button of an extension telephone to be held is pressed; An extension holding system characterized by having means for prohibiting incoming calls from a telephone to the held extension, and means for causing a ringer of the held extension to ring when the held extension answers again.