JPS6352550A - Push-button telephone system - Google Patents

Abstract

PURPOSE:To recognize many kinds of incoming tones by sending an incoming tone with different frequency from an incoming tone sending circuit in response to the intermittent period of the incoming signal detected by a detection circuit. CONSTITUTION:A program is registered in advance in a memory circuit 12 by the button operation of a push-button telephone set 1 in a way that the incoming tone of an incoming tone A sending circuit 8 is sent to the telephone set 1 in detecting an incoming signal at the incoming call of a PBX extension or trunk line by an incoming call detection circuit 6 and an incoming tone of an incoming tone B sending circuit 9 is sent thereto in detecting an incoming signal at the incoming call of a PBX transfer line wire. With an incoming call given to an external line 4, the kind of the incoming tone corresponding to the detected intermittent period is read from the memory circuit 12 and the incoming tone of the incoming tone A sending circuit 8 or the incoming tone B sending circuit 9 is sent to the push-button telephone set 1 by reading the kind of the incoming tone corresponding to the detected interruption period from the memory circuit 12.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention provides a key telephone device that accommodates a plurality of outside lines and a plurality of key telephones, and performs making outside calls, answering incoming outside calls, and making internal calls between the key telephones. Regarding.

[Prior Art] Conventionally, in this type of key telephone device, a private branch exchange (hereinafter referred to as PBX) internal line and a central office line (these are referred to as external line)
If accommodated, PBX extension, external line transferred from PBX,
And each incoming call from the central office line is a ringtone of the same frequency (for example, a composite tone of 500Hz and 600Hz), so
The difference is the intermittent cycle of the ringtone (for example, the ringtone rings for 1 second, rings for 2 seconds)
They were able to tell the difference between the two (such as repeated pauses for seconds, etc.).

[Problems to be Solved] In the conventional key telephone device described above, when the reception of the call differs depending on the caller, as in the case of incoming calls from a PBX extension and a forwarded external line from the PBX, the intermittent cycle of the ring tone immediately It was extremely difficult to distinguish between the two.

[Means for Solving Problems] The present invention has been made to solve the above-mentioned problems of the conventional art. In a telephone device, a detection circuit detects an intermittent cycle of an incoming call signal of an outside line, a ring tone sending circuit that sends multiple types of ring tones with different frequencies to the key telephone, and an intermittent cycle of an incoming call signal detected by the detection circuit. The present invention is configured to include a memory circuit for registering the type of ringtone to be transmitted by the ringtone sending circuit in accordance with the above.

[Example] Next, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram of a key telephone device according to an embodiment of the present invention.

Here, the key telephone device of this embodiment includes a plurality of key telephones a1, a voice interface circuit 2 and a data interface circuit 3 connected to the key telephone 1, and a P.
An external line 4 consisting of a BX extension line or a central office line, and a trunk circuit 5
, an incoming call detection circuit 6, an audio switch circuit 7, a ring tone A sending circuit 8, a ring tone B sending circuit 9, a data input/output interface circuit 10, a central processing unit 11, a memory circuit 12, and a program memory. It is composed of a circuit 13.

The key telephone 1 is connected to a voice switch circuit 7 via a voice interface 2, and the outside line 4 is connected to a voice switch circuit 7 via a trunk circuit 5, thereby performing voice coupling.

In addition, an outside line (office line or PBX extension) 4 is accommodated in a trunk circuit 5 and is used to acquire outside lines and send out dial signals.
The incoming call detection circuit 6 detects an incoming signal on the outside line 4 and detects the intermittent cycle of the incoming signal, and the detected signal is sent to the central processing unit 11 via the data input/output interface 10.

A ring tone A sending circuit 8 and a ring tone B sending circuit 9 are circuits that send out ring tones of different frequencies, respectively, and send the ring tones to the button telephone via the audio switch circuit 7 and the audio interface circuit 2.

The button information and hook switch information from the button telephone 1 are sent to the central processing unit 11 via the data interface circuit 3 and the data input/output interface circuit 10, and the lamp information is sent to the button telephone 1 from the central processing bag al.
The data is sent from the data input/output interface circuit 10 and the data interface circuit 3 from the data input/output interface circuit 10 to the data interface circuit 3. Memory circuit 12
Depending on the difference in the intermittent cycle of the incoming call signal, it is possible to register which ring tone to be sent from the ring tone A transmitting circuit 8 or the ring tone B transmitting circuit 9 by dialing the button telephone a1. The program memory circuit 13 includes a central processing unit 11
A program for controlling the entire key telephone device is stored.

Next, the operation of the key telephone device will be explained.

There are various intermittent cycles for the incoming signal on the outside line 4, and generally the second
There is an intermittent cycle of the incoming signal when a call is received from a PBX extension line or a central office line as shown in the figure, and an intermittent cycle of the incoming signal when a call is received from the PBX transfer external line as shown in FIG.

In the key telephone device of this embodiment, when the incoming call detection circuit 6 detects the incoming call signal shown in FIG.
When the incoming signal shown in FIG. 3 is detected as the ring tone of the sending circuit 8, the memory circuit is set in advance by button operation of the key telephone al so that the ring tone of the ring tone B sending circuit 9 is sent to the key telephone 1. 12, and
When there is an incoming call on the outside line 4, the incoming call detection circuit 6 detects the intermittent cycle of the ring tone, and the detection result is sent to the central processing unit 11 via the data input/output circuit 10. The central processing device 11 reads the type of ringtone corresponding to the detected intermittent cycle from the memory circuit 12, and depending on the type, switches the ringtone of the ringtone A output path 8 or the ringtone B output circuit 9 to the voice switch. It is sent to the button telephone a1 via the circuit 7 and the voice interface circuit 2.

[Effects of the Invention] As explained above, the present invention provides a detection circuit that detects the intermittent cycle of an incoming call signal of an outside line, a ring tone sending circuit that sends multiple types of ring tones with different frequencies to a button telephone, and a detection circuit. By having a memory circuit that registers the type of ringtone to be sent by the ringtone detection circuit according to the intermittent cycle of the incoming signal detected by the In addition to making it easier to distinguish between ringtones, a wide variety of ringtones can be selected by registering them in the memory circuit, which has the effect of making it easier to distinguish between different types of ringtones.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of a key telephone device according to an embodiment of the present invention, Fig. 2 is a time chart showing the intermittent cycle of ringtones of PBX extension lines, central office lines, etc., and Fig. 3 is a PBX transfer external line. It is a time chart figure showing the intermittent period of the ringtone etc. l: Button telephone 2: Voice interface circuit 3: Data interface circuit 4: Outside line (office line or PBX extension) 5 Nidrank circuit 6: Incoming call detection circuit 7: Voice switch circuit 8: Ring tone A sending circuit 9: Ring tone B sending Circuit 10: Data input/output interface circuit 11: Central processing unit 12: Memory circuit 13 Niprogram memory circuit

Claims (1)

[Claims] A key telephone device including a plurality of key telephones and a central processing unit, comprising: a detection circuit for detecting an intermittent cycle of an incoming call signal of an outside line; and a memory circuit that registers the type of ring tone to be transmitted by the ring tone transmission circuit according to the intermittent cycle of the incoming signal detected by the detection circuit. Telephone equipment.