JPH02268051A - Digital telephone set - Google Patents

Abstract

PURPOSE:To obtain a digital telephone set always utilizing all keys on a panel effectively by sharing functional keys for option and telephone set and sending key signals for option and telephone set selectively based on the detection signal of a connection detection section of the option. CONSTITUTION:The depression of a key on a panel 11 is recognized by a signal transmission section 14. Whether a telephone exclusive key or a common key 12 is discriminated and a signal in the case of the telephone set exclusive key is sent from a D1 control channel 16 to the line side. In the case of the common key 12, based on a connection signal sent from a connection detection section 13, the presence of the connection to the option connection 10 is discriminated and in the absence of the connection, a signal in the case of the telephone set key is sent to the line. In the presence of the connection, the signal as the option key is sent to the option section via a connector 10 from a signal line 24. The voice signal in use as the telephone set is sent through a channel 19 and a channel 23 is used in the case of non-telephone set by using the option. By such a constitution, the digital telephone set utilizing all keys on the panel of a case effectively at all times is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a digital telephone that changes the content of a key signal when a shared key is operated depending on connection/disconnection of an optional telephone.

[Conventional technology]

Figure 3 shows, for example, NTT Research Practical Application Report No. 33, No. 8 (
1984) This is an operation panel key layout diagram showing the conventional digital telephone shown on pages 1879 to 1892. In the figure, 1 is a call/end key 2 for making and disconnecting calls to non-telephone equipment that does not have an NCU function. is an additional key that automatically calls a 16 Kb/s non-telephone device that does not have an NCU function. 3 is a switch key that switches from a telephone to 64 Kb/s non-telephone communication and back. 4 is a key that changes the number of the other party. Dial keys for dialing 5 is an answer key for conference calls or answering call calls 6 is a redial key that automatically resends the last dialed number and displays/clears the dial T is a speaker reception key that switches between handset calls and speaker reception It is.

Next, the operation will be explained. This digital telephone is configured so that options can be added to the main body of the telephone, and has the function of a telephone and the function of connecting non-telephone equipment and performing data communication as an option 11/part for combined telephone/non-telephone communication. It provides services.

When used as a telephone, the handset can be picked up and the dial key 4 used to dial the number of the other party to call and talk to the other party. NCU
When making a call using a non-telephone device without a function, the user can press the call/end key 1, dial the number of the other party using the dial key 4, and call the other party's non-telephone device for communication. Also, by pressing the additional key 2, 64K
In addition to being able to connect to a 16 K b/s non-telephone device to the same destination while communicating on a b/s channel, pressing the switch key 3 allows you to switch from a telephone to a 64 K b/s non-telephone communication during a call. It is also possible to switch on and off.

[Problem to be solved by the invention]

Conventional digital telephones are configured as described above, and the operation panel is equipped with function keys dedicated to the option section, such as call/end key 1, in advance in case the case is connected to the option. For users who do not use the optional parts, function keys dedicated to these optional parts are unnecessary, and the number of function keys for the power packer is reduced due to space constraints. There was a problem.

This invention was made to solve the above-mentioned problems, and an object of the present invention is to obtain a digital telephone in which the same key can be used as an option function key and a telephone function key. .

[Means to solve the problem]

The digital telephone according to the present invention uses a function key for options and a function key for the telephone as a common shared key,
A connection detection unit that detects connection/non-connection for options;
A device equipped with a signal sending unit that selectively sends out a key signal as an option function key and a key signal as a telephone function key based on this connection detection detection signal when the shared key is operated. It is.

[Effect]

The signal sending section according to the present invention divides the key signal sent when the shared key is operated into the key signal of the option function key and the telephone function key according to the connection/disconnection detection result for the option by the connection detection section. selectively sent.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure, 10 is an optional part connector for connecting an option part to the telephone main body of this digital telephone, 11 is an operation panel equipped with dial keys, various function keys, etc., and 12 is an operation panel on this operation panel 11. A common key 13 which is arranged and shared by the function key for the option part and the function key for the telephone is a connection detection part 14 that detects whether or not the option part is connected to the option part connector 10.
When a key on the operation panel 11 is operated, the key signal is sent to the line or the option section, and when the shared key 12 is operated, the key signal is sent as a function key for the option based on the detection signal of the connection detection section 13. and a signal sending unit that selectively sends out a key signal as a function key for the telephone;
15 is a line I/FOO line that provides an interface (I/F) with the line; 16 is a universal synchronous e-asynchronous transmitter/receiver (USART) 17 and controls key signals etc. via the line I/F circuit 15; D1 control signal channel that sends and receives signals to and from the line.

18 is a control channel provided between the 11717 connector 10 and the circuit 15 to exchange control signals between the option section and the line, and 19 is a codec (C0DEC) 20 and an audio circuit. A B1 audio signal channel 23 is provided between the line engineer β circuit 15 and the option unit connector 10 in order to exchange data signals between the line and the option unit. B, a non-telephone information channel 24, is a signal line for transmitting and receiving control signals between the signal sending section 14 and the option section via the option section connector 10.

Next, the operation will be explained. Here, FIG. 2 is a flowchart showing the operation of the signal sending section 14 of the present invention.

When the user presses a key on the operation panel 11, the signal is sent to the signal sending unit 14, and the signal sending unit 14 recognizes that the key has been pressed manually (step 5TI).

Next, the key signal code is determined, and it is determined whether the operated key is a telephone-specific key such as a dial key, or a common key 12 that is shared by a telephone function key and an option section function key (step 5T2). ), if it is the former, the signal is sent to the line side through the D1 control signal channel 16 (
Step ST3). In the latter case, the connection detection unit 1
Based on the connection signal sent from 3, it is determined whether or not the optional part is connected to the optional part connector 10.Step S
T4), if not connected, sends a key signal as a function key for the telephone to the line side (Step 5)
T3).

If the option section is connected, a key signal as a function key for the option section is sent to the option section side via the signal line 24 and the optical connector 10 (step ST5).

Note that voice signals when used as a telephone are transmitted and received using the B1 voice signal channel 19, and information data when used as a non-telephone device using the option section are transmitted and received using the Bx non-telephone information channel 23. Ru.

In addition, although the above embodiment shows a system in which the destination of the key signal is changed by connecting/disconnecting the option,
At this time, the signal codes may be changed separately, and when the signal codes are changed separately, the destination of the signal can be the same, and the same effect as in the above embodiment can be achieved.

〔Effect of the invention〕

As described above, according to the present invention, a common key is provided, and when the optional part is not installed, the common key is used as a function key for the telephone, and when the optional part is installed, it is used as a common function key for the optional part. Since the digital telephone is configured so that it can be used for various purposes, it is possible to obtain a digital telephone in which all the keys on the operation panel of the housing can be used effectively regardless of whether or not they are used for options.

[Brief explanation of drawings]

FIG. 1 is a circuit block diagram showing a digital telephone according to an embodiment of the present invention, FIG. 2 is a flowchart showing the signal sending operation of the present invention, and FIG. 3 is an operation panel key arrangement diagram showing a conventional digital telephone. It is. Reference numeral 10 is an optical eye connector, 12 is a common key 13 is a connection detection unit, and 14 is a signal sending unit. Figure 1

Claims (1)

[Claims] An option part connector for connecting an option part, a common key shared by the function key for the option part and a function key for the telephone, and whether or not the option part is connected to the option part connector. a connection detection unit to detect, and when the shared key is operated, selectively selects a key signal as an optional function key and a key signal as a telephone function key based on a detection signal of the connection detection unit; A digital telephone equipped with a signal transmitting section that transmits a signal to.