JPS6223297A - Key telephone set - Google Patents

Abstract

PURPOSE:To utilize a message tone as a warning tone to a holding set when the holding set forgets holding an extension call or the holding time is longer by sending the message tone from a held set to the holding set. CONSTITUTION:Even when a key telephone set 20a is in extension call with a key telephone set 20i while holding a key telephone set 20b, the key telephone set 20b listens to an alarm tone while being talking with the key telephone set 20c by synthesizing the voice sent from the key telephone set 20i to the key telephone set 20b with the message tone sent from a tone generating section 6 to the key telephone set 20b. The tone generating section 6 has several kinds of sound sources such as holding tone and message.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a button telephone device that has a built-in microprocessor in its main device and controls a telephone or the like using a storage program method. Here, a key telephone device is a device that accommodates two to a dozen central office lines and several extension lines for several to several dozen telephones in the same subscriber's premises. A device equipped with means for selecting and using it.

Furthermore, "on hold" includes all situations in which the caller is forced to temporarily wait.

[Required 1] In a button telephone device that can control a call between key telephones to a hold state, when the call is on hold, the held party can make a message sound on the held party's key telephone by operating the held party's key telephone. This allows emergency communications to be made from

[Conventional technology]

In conventional key telephone devices, when one of the key telephones puts a call between extensions on hold during a call between extensions, only the person on the pushbutton telephone that held the call could respond to or release the held call.

[Problem that the invention seeks to solve]

In such a conventional key telephone device, the key telephone on the holdee's side is forced to wait until the hold button telephone operates the hold call. Therefore, if the waiting time is long, there is a drawback that the message may not be sent to the holding button telephone and the extension voice circuit may be abandoned.

SUMMARY OF THE INVENTION The present invention aims to eliminate such drawbacks, and aims to provide a key telephone device that can send a message from a held button telephone to a held button telephone.

[Failure to solve the problem]

The present invention provides a pushbutton telephone device equipped with a holding means for executing a hold request for a call by one of two pushbutton telephones during an extension call, when the other button is pressed during a period in which the holding means is effective. The present invention is characterized in that it includes a signal generation signal that sends a signal calling attention to one of the button telephones based on a specific signal from the telephone.

[Effect]

If one key telephone puts the mutual extension call on hold during a mutual extension call between key telephones, this key telephone
The hold means operates based on the operation of L, and the call state is controlled to be on hold. Previously, the person on hold was forced to wait until the holding party's key phone released the hold;
In the present invention, when a specific operation is performed on the holdee's button telephone, a message tone is emitted to the holdee by the operation of the signal generating means.

〔Example〕

Hereinafter, the individual package U according to the present invention will be explained based on the drawings.

FIG. 1 is a block configuration diagram showing the configuration of an apparatus according to an embodiment of the present invention. FIG. 2 is a front view of the button telephone used in this embodiment.

First, the configuration of an apparatus according to an embodiment of the present invention will be explained based on FIG. This embodiment device includes a signal sending circuit 2 connected to a central office line 75, a trunk circuit 3 connected to this signal sending circuit 2, and voice circuit lines 50a'' and 50n connected to key telephones 20a to 2On. The connected voice interface 4, the data interface 5 connected to the button telephone 20a"□20n via the Y-tahas 55a to 55n, the ROM 9, the RAM+, 0, and the ROM
9 and the central processing unit (hereinafter referred to as C) connected to r<AMlo
)) tJ),,)8, data interface 1-1, input/output interface 51 connected to CP tJ8,
．． A switch connected to an audio interface 4, a tone generator 6, and an input/output interface 7, and a slave circuit network 1 are provided.

Next, the operation of this embodiment device will be explained based on FIGS. 1 and 2.

Button:/When the hold button 18 of the button telephone 20a is pressed while the telephone 20a and the button telephone 20b are talking between extensions, this information is transmitted via the data bus 55a2, the data interface 5, and the input/output interface (CI) tJ. Sent on 8th. Based on this information, C
I) [, J 8 opens the extension voice circuit of button telephones 20a and 20b, and switch circuitry 1 is connected to button telephone 20b to close the voice circuit of tone generator (j).
Send information to. Switch network 1 receives this and
opens the contacts of the extension audio circuits of the button telephones 20a and 20b, and closes the contacts of the audio circuits of the button telephone 20b and the tone generator 4, so that the inter-extension calls of the button telephones 20a and 20b are not put on hold. A hold tone is sent from the toe generator 6 to the held button telephone 20b.

Here, by pressing a specific button on the held side button telephone 20b-L, for example, the ward of the dial button 17, the button telephone 20b-L on the held side can be set to the state for emitting the message sound. The data is sent to the CPU 8 via the data center 55b, the data interface 5, and the input/output interface 7.

Based on this sentiment old. cpus is connected to the holding side key telephone 20h and the tone generator 6. ! - sends information to the switch network 1 via the input/output interface 7 so as to close the audio circuit contacts. As a result, the switch circuit network 1 closes the contacts between the button telephone 20a and the voice circuit of the tone generator 6, which have been open until now, and
A message sound is transmitted at 0a.

Furthermore, even when the key telephone 20a is holding an extension call with the key telephone 20i while the key telephone 20b is on hold, the voice and tone generator 6 are transmitted from the key telephone 20i to the key telephone 20b. By combining the sound of the message to be sent, the alarm sound can be heard from the key telephone 20b while continuing the conversation with the key telephone 20c.

Here, it is assumed that the tone generator 6 has several types of sound sources such as a hold tone and a message.

〔Effect of the invention〕

As explained above, the present invention allows a message tone to be sent from the party on hold to the party on hold, so that when the party on hold forgets that an internal call is on hold or has been on hold for a long time, , can be used as a warning sound for the person on hold, reducing waiting time for the person on hold.
It also has the effect of allowing emergency contact.

[Brief explanation of drawings]

FIG. 1 is a block configuration diagram showing the configuration of an apparatus according to an embodiment of the present invention. FIG. 2 is a front view of a key telephone connected to the device according to the embodiment of the present invention. ■... Switch circuit network, 2... Signal sending circuit, 3...
...Trunk circuit, 4...Audio interface, 5.
...Data interface, 6...Tone generator, 7
...Input/output interface, 8...Central processing unit (
CPU), 9...ROM, 10...RAM, 15
...Main device, 16...Extension selection button, 17...
Dial button, 18... Hold button, 20... Button telephone, 50... Voice circuit line, 55... Data bus, 75... Office line. Patent Applicant: NEC Corporation -1 Agent: Patent Attorney Naotaka Ide

Claims (1)

[Claims] (1) In a key telephone device equipped with a holding means for executing a call hold request by one of two key telephones during an extension call, when the other key telephone is 1. A button telephone device comprising a signal generation signal for sending a signal to call attention to one of the button telephones based on a specific signal from the button telephone device.