JPH05259976A - Cordless key telephone device - Google Patents

Abstract

PURPOSE:To enable a user to identify the fault type of a radio circuit with a cordless key telephone device when the talking is impossible due to the circuit fault. CONSTITUTION:If no idle control channel is available in a radio circuit 52 or no radio call channel is available, a control circuit 13 of a main device 1 outputs a busy tone different from that which is produced when the opposite party is absent through a busy tone output circuit 15. If a radio circuit 72 has no idle radio control channel or no available call channel, a control circuit 76 of a portable device 7 outputs a busy tone different from that produced when the opposite side is absent through a busy tone output circuit 78. In such a constitution, a user can recognize the fault of a radio circuit.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cordless button telephone device.

[0002]

2. Description of the Related Art FIG. 2 shows a block diagram of a conventional cordless button telephone device. A portable device 7 is connected to a main device 1 connected to a telephone line via an extension telephone 3 and a connection device 5. In the main unit 1, reference numeral 11 is a line I / F (interface, the same applies hereinafter), which connects the telephone line and the main unit 1. 12 is I / F
It is a circuit and connects the main device 1 to a plurality of connection devices 5 and a plurality of extension telephones 3. A control circuit 13 controls the main device 1. Reference numeral 14 is a tone generation circuit, which is a tone such as BT (busy tone, audible signal indicating that the other party is busy) or RBT (living back tone, audible signal notifying the caller that the call is in progress). Is what occurs. In the connection device 5, reference numeral 51 denotes an I / F circuit, which connects the main device and the connection device. Reference numeral 52 denotes a wireless circuit that performs wireless communication between the connection device 5 and the portable device 7. Reference numeral 53 is a control circuit, which controls the connection device 5. An antenna 54 is connected to the wireless circuit 52 of the connection device 5.
In the portable device 7, 71 is an antenna, and the wireless circuit 7
Connected to 2. 73 is a communication circuit, and the microphone 7
4 and the speaker 75 are connected. A control circuit 76 has a ringer 77 and controls the portable device 7. In the extension telephone 3, 31 is an I / F circuit,
The main device 1 and the extension telephone 3 are connected to each other. 32
Is a communication circuit, to which the microphone 33 and the speaker 34 are connected. A control circuit 35 controls the extension telephone 3.

Next, the operation of the above conventional example will be described.
When a user makes an incoming call from a telephone line or extension telephone 3 to a person carrying the portable device 7, the control circuit 13 of the main unit 1 informs the user of the RB during the call.
Since T is heard, the user can recognize that the other party is calling. Further, when the user wants to make an incoming call from the portable device 7 to the person using the wired extension telephone 3 or the telephone line, in addition to the RBT,
When an error occurs in the wireless line, the ringer 77 or the like of the portable device 7 is activated to notify the user of the wireless line failure.

As described above, even in the above-mentioned conventional cordless button telephone device, when the extension telephone 3 calls the portable device 7, the user can confirm that the other party who wants to make a call is called. Similarly, when calling the telephone 3, it is possible to know that the other party is calling and that a failure has occurred in the wireless line.

[0005]

However, in the above-mentioned conventional cordless button telephone device, if the other party using the portable device does not respond, the cause is that the other party is absent, or There is a problem that it is not possible to distinguish whether it is due to an inability to receive an incoming call due to a failure of the wireless line.

The present invention solves the above-mentioned problems of the prior art. It is impossible to make an incoming call to a portable device due to a fault in a wireless line, or it is not possible to make an outgoing call from a portable device due to absence. The purpose of this is to convey the cause of the matter to the user separately.

[0007]

In order to achieve the above object, the present invention provides at least a main unit with a tone generation circuit for generating a special kind of busy tone, and a fault occurs in a radio line. In this case, this special kind of busy tone is output, which is different from the case where the call cannot be made due to absence or the like.

[0008]

The present invention has the following functions due to the above-mentioned structure. That is, when a user wants to call a person who has a portable device and wants to make a call, if the wireless control channel is being used by another person or there is no wireless call channel available, the user can By listening to a special type of busy tone indicating that a failure has occurred, it is possible to know that the reason why the other party does not respond is that the call cannot be made due to the failure of the wireless line.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows the configuration of an embodiment of the present invention. In FIG. 1, parts corresponding to those in FIG. 2 are designated by the same reference numerals, and detailed description thereof will be omitted. In the portable device 7, reference numeral 78 denotes a busy tone generating circuit.
Connected to the control circuit 76 and the communication circuit 73, and outputs a plurality of types of busy tones to the communication circuit 73 according to an instruction from the control circuit 76. In the main unit 1, reference numeral 15 is a tone generation circuit having a function of generating a busy tone of the same type as that of 78, and the control circuit 13 and the I / F
It is connected to the circuit 12.

Next, the operation of the above embodiment will be described.
In FIG. 1, for example, when the user tries to make a call from the portable device 7, the wireless control channel is not available due to being used by another person, or there is no available wireless communication channel. When the control circuit 76 detects it, it instructs the busy tone generation circuit 78 to output a special type of busy tone according to the situation, and makes the user listen to it. Therefore, the user recognizes the failure of the wireless line. can do.

Further, for example, a telephone line or extension telephone 3
When the main device 1 instructs the connection device 5 to make an incoming call from the portable device 7, the wireless control channel is not empty,
Alternatively, when there is a situation such as when there is no available wireless communication channel, the connection device 5 notifies the main device 1 of the failure of these wireless lines. As a result, the control circuit 13 of the main device 1
Since the tone generation circuit 15 is instructed to output a special type of busy tone according to the situation, and the user hears it,
The user can recognize the failure of the wireless line.

As described above, according to the above-described embodiment, when the user tries to receive an incoming call from the telephone line or the extension telephone 3 to talk with the other party who has the portable device 7, the other person sets the wireless control channel. If the user is busy or does not have a wireless call channel available, the user will hear a busy tone of the type that corresponds to the failure of the wireless line. This has the effect of being able to know that there is a line.

On the contrary, when the user tries to make a call from the portable device 7 and there is a failure in the wireless line, the same effect can be obtained.

[0015]

According to the present invention, when a user wants to call a person who has a portable device and wants to make a call, if the wireless control channel is being used by another person or there is no available wireless call channel, Since the user hears a special kind of busy tone indicating the occurrence of a failure in these wireless lines, it has the effect of being able to know that the other party is not responding to the wireless line.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of a cordless button telephone device of the present invention.

FIG. 2 is a block diagram showing a configuration of a conventional cordless button telephone device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 main device 3 extension telephone 5 connection device 7 portable device 11 line interface circuit 12 extension telephone, interface circuit with connection device 13,35,53,76 control circuit 14,15 tone generation circuit 31 interface with main device 32,73 Communication circuit 51 Interface circuit with main device 52,72 Wireless circuit 54,71 Antenna 74 Microphone 75 Speaker 77 Ringer 78 Busy tone generation circuit

Claims (1)

[Claims] 1. A main device connected to a telephone line, a portable device connected to the main device via a connection device, or a wired extension telephone connected to the main device. A control circuit that detects that an incoming or outgoing call from a telephone line or extension telephone to a portable device cannot be made due to a fault in the wireless line, and a special kind of busy signal that informs the fault of this wireless circuit by the instruction of the control circuit. A cordless button telephone device having a tone generating circuit capable of outputting tones.