JPH089948Y2 - Cordless phone interface - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an interface for connecting a button telephone portion and a cordless telephone portion.

(Problems to be Solved by Conventional Techniques and Inventions) Conventionally, in order to incorporate a cordless telephone into a button telephone device, the software of the main device and the telephone has been changed. Therefore, the software development cost is enormous.

The present invention has been proposed to improve the above-mentioned drawbacks, and it is possible to reduce the development cost by providing an interface connected between a conventional button telephone part and a conventional cordless telephone part. With the goal.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention has a key telephone 1
The signal from the transceiver 7 is connected between the key control unit 4 that is connected to the telephone CPU2 of the telephone and has the built-in crosspoint switch 5, and the transceiver 7 that functions as a cordless telephone. Control CPU6 for controlling the key control unit 4 by
It is the gist of the invention to have and.

(Function) The present invention does not need to change the software of the main unit and the telephone as in the conventional case by connecting the interface between the portion as the button telephone and the portion as the cordless telephone, and the development cost therefor Can be reduced.

(Example) Next, the Example of this invention is described. Needless to say, the embodiment is merely an example, and various modifications and improvements can be made without departing from the spirit of the present invention.

FIGS. 1 and 2 show a key telephone and a key telephone device using the interface of the present invention.

In the figure, 1 is a key telephone as a terminal of a key telephone device, 1a is a key telephone portion, and 2 is a telephone CP.
U, 3 are communication path control devices, 4 are key control units, 5
Is a cross point switch (XPSW) built in this key control unit, 6 is a control CPU for controlling the key control unit, 7 is a transmitter for a cordless telephone, and 8 is an amplifier for transmitting speech. A handset, 9 is a handset which is an amplifier for receiving a voice, 10 is a 2-line to 4-line conversion circuit, 11 is a transformer for communication, 12 is a handset which is coupled to the transceiver through an antenna, 13 Indicates a terminal driver / receiver for transmitting and receiving signals on the extension.

Further, 20 is a main unit in the key telephone device, 21 is an outside line control unit for connecting the main unit 20 to an outside line 30, and 22 is a communication line control for forming a communication line between each key telephone 1 and the outside line 30. Section, 24 is a terminal interface for connecting with each key telephone 1, 25 is a main device driver / receiver for exchanging signals on extension lines, and 23 is a main device for controlling each component in these main devices. CPU.

 Next, the operation will be described.

When making a call from the slave unit 12 to the outside, the signal from the slave unit 12 is transmitted to the transceiver 7 through the antenna, and the transceiver 7
Signal is given to the control CPU 6 via the signal line 6a, and the control CPU 6 selects an empty station line of the button telephone device 1 and operates the crosspoint switch 5 of the key control unit 4 so as to be connected to the outside line. .

That is, various keys are originally arranged in the key control unit 4 of the conventional key telephone, and by operating these keys, an outside line call and dial transmission are performed.
However, in the present invention, this key is replaced with the cross point switch 5, and the control CPU 6 operates the cross point switch 5 as if the key operation is being performed by the signal from the transceiver 7.

In this way, the cordless telephone can be incorporated into the key telephone device by modifying the conventional key telephone device to the minimum necessary.

 Next, the transmission and reception operations will be described.

First, in the case of making a call, when the call operation is performed by pressing the outside line button or the like from the handset 12, the control CPU 6 receives the information from the transceiver 7 as described above, and operates the crosspoint switch 5 to the telephone CPU 2 On the other hand, it is recognized that the external button of the telephone button 1 is apparently pressed.
Then, the information is sent to the extension via the terminal driver / receiver 13 and is received by the terminal interface 24 via the main device driver / receiver 25 on the main device 20 side,
This is transmitted to the main device CPU 23, and the main device CPU 23 controls the outside line control unit 21 to perform an outgoing operation to the outside line 30.

In the receiving operation, the main unit CPU23 receives the incoming call information from the outside line control unit 21, and the route is the reverse of the outgoing call action, that is, the terminal interface 24 → the main unit driver / receiver 25 → the terminal driver / receiver 13 → the telephone set CPU2 → Control CP
U6 → It is transmitted to the handset 12 via the transceiver 7, and the handset 12 performs an incoming operation such as a blinking lamp and a ring tone.

(Effect of the Invention) The present invention is, as described above, the telephone set CPU2 of the button telephone 1.
Is connected between the key control unit 4 having a built-in crosspoint switch 5 and the key control unit 4 and a transceiver 7 for functioning as a cordless telephone, and the key is supplied by a signal from the transceiver 7 By providing the control CPU 6 for controlling the control unit 4 and providing the interface between the key telephone device and the cordless telephone, the key telephone device and the cordless telephone can be easily coupled. ,
Therefore, the telephone CPU, software, etc. of the conventional button telephone can be used as they are, and the development cost can be reduced.

[Brief description of drawings]

FIG. 1 shows a key telephone using the interface of the present invention, and FIG. 2 shows a key telephone apparatus comprising a key telephone using the interface of the present invention and a main unit. 1 ... Button telephone device 2 ... Telephone CPU 3 ... Call path control unit 4 ... Key control unit 5 ... Crosspoint switch (XPSW) 6 ... Control CPU 7 ... Transceiver in cordless telephone 8 ... Transmission Phone 9 …… Handset 10 …… 2-wire to 4-wire conversion circuit 11 …… Transformer 12 …… Slave 13 …… Terminal driver / receiver 20 …… Main device 21 …… External line controller 22 …… Call path control Device 23 …… Main device CPU 24 …… Terminal interface 25 …… Main device driver / receiver

Claims (1)

[Scope of utility model registration request] 1. A key control unit connected to a telephone CPU of a button telephone and having a built-in crosspoint switch, and connected between the key control unit and a transceiver for functioning as a cordless telephone. And a control CPU for controlling the key control unit according to the signal of 1.