JP3269892B2 - Cordless telephone equipment - Google Patents

Abstract

PURPOSE:To provide a cordless telephone system where a wire telephone can be used and an existed wire telephone set can be used in a room without a wire telephone line. CONSTITUTION:A wire telephone line adapter 1 connected to the wire telephone line 4 is operated as a cordless telephone master unit making communication with a cordless telephone slave unit through a radio high frequency signal, and a wire telephone unit adapter 2 connected to the wire telephone unit 3 operates as the cordless telephone slave unit making communication with the cordless telephone master unit through the radio high frequency signal. Thus, communication is made with cordless wire telephone.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cordless telephone device capable of making a telephone call with a wired telephone in a place where there is no wired telephone line.

[0002]

2. Description of the Related Art In recent years, a cordless telephone device using wireless transmission instead of a curl code between a telephone body and a handset has been used. The cordless telephone device replaces the curl code between the telephone body of the conventional wired telephone and the handset with wireless transmission, and replaces the part corresponding to the conventional telephone body with the part corresponding to the cordless telephone base unit and the handset. Called cordless handset.
A cordless telephone handset can be used to make and receive calls in the vicinity (generally within a radius of several hundred meters) of a cordless telephone base set in a home or office, and a wired telephone line is wired. Wired telephones can be used even in rooms that do not.

[0003]

However, conventionally,
When a user who has used a wired telephone purchases and uses the above-described conventional cordless telephone device, there are the following problems.

[0004] First, an existing wired telephone that has been used conventionally cannot be used. Second, there is a problem that the usage of the cordless telephone device and the wired telephone are different, and it is difficult for a user who is not used to the cordless telephone to use it. This means that when making a call with a wired telephone, for example, it is sufficient to pick up the handset (this is called off-hook) and enter the telephone number (this is done by dialing or push button), whereas with a cordless telephone device, This means that it is necessary to input a telephone number after pressing the call button on the slave unit.

[0005] The present invention solves the above-mentioned problems, and an existing wired telephone which a user has conventionally used can be used without wasting, and a wired telephone line is not wired. It is another object of the present invention to provide a cordless telephone device that can use a telephone call with a wired telephone.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a cordless telephone apparatus of the present invention converts a reception signal from a wired telephone line into a radio high-frequency signal, transmits the radio signal, and converts the received radio high-frequency signal from the received radio high-frequency signal. A wired telephone line adapter for sending the reproduced line signal to the wired telephone line,
Sends out a telephone signal reproduced from the radio frequency signal received from the wired telephone line adapter to a wired telephone, and composed of a wire telephone adapter for transmitting and converting the transmission signal from the wired telephone into a radio frequency signal, the Wired
The telephone adapter is transmitted from the wired telephone
Dial signal received by the telephone interface means
Pattern to detect a specific pattern in the data signal sequence
An output of the specific pattern detecting means.
To set the operation state of the wired telephone line adapter
A control signal generating means for generating a control signal;
The telephone line adapter is sent from the wired telephone adapter.
System that receives the incoming control signal and decodes the content of the signal.
Control signal decoding means, and the control signal decoding means
The operation state of the telephone line adapter is changed according to the read signal.
Configure to set .

[0007]

According to the above arrangement, the wired telephone line adapter connected to the wired telephone line functions as a cordless telephone base unit for communicating with the cordless telephone handset via a radio high-frequency signal, and the wired telephone line connected to the wired telephone line. Adapter is
By acting as a cordless telephone handset that communicates with the cordless telephone base station via a radio high-frequency signal, a cordless telephone call is performed.

[0008]

FIG. 1 shows the configuration of a cordless telephone apparatus according to an embodiment of the present invention. In FIG. 1, reference numeral 4 denotes a wired telephone line to which a wired telephone line adapter 1 is connected. Reference numeral 2 denotes a wired telephone adapter, which is connected to the wired telephone 3. The wired telephone 3 includes a telephone body 31, a push button 32 disposed on the telephone body 31, and a handset 33. Note that a rotary dial can be used instead of the push button 32. When a user makes a call using the cordless telephone device of the present invention shown in FIG. 1, the user picks up the handset 33 of the wired telephone 3. At this time, the wired telephone adapter 2 detects the off-hook of the wired telephone 3 and establishes a wireless connection with the wired telephone line adapter 1. The wired telephone line adapter 1 captures the wired telephone line 4 in response to a line setting request from the wired telephone adapter 2,
As a result, the wired telephone 3 is connected to the wired telephone line 4 via the wired telephone adapter 2 and the wired telephone line adapter 1, and the user can input a dial tone from a public telephone network exchange (not shown) to the wired telephone 3. It can be heard from the handset 33. After confirming the dial tone from the public telephone line network exchange (not shown), the user uses the push button 32 of the wired telephone 3 to input the telephone number of the other party. The input telephone number is transmitted to the DT
It is transmitted as an MF tone and transmitted to the wired telephone line 4 via the wired telephone adapter 2 and the wired telephone line adapter 1. After that, you can talk in the same way as a conventional telephone call. As described above, the user can use the wired telephone 3 to make a call of a cordless telephone by the same operation as a conventional wired telephone.

Next, when an incoming call to the wired telephone line 4 is received by the wired telephone 3, a call signal from a public telephone network exchange (not shown) is first detected by the wired telephone line adapter 1. Thus, the wired telephone line adapter 1 wirelessly sets a line with the wired telephone adapter 2. The wired telephone abceptor 3 sends a calling signal to the wired telephone 3 in response to a line setting request from the wired telephone line adapter 1, and the ringing bell of the wired telephone 3 rings. The user recognizes the incoming call by the call bell, and the handset 33 of the wired telephone 3
, The wired telephone adapter 2 is connected to the wired telephone 3
Off-hook is detected and the calling signal is stopped. In this way, the wired telephone 3 is connected to the wired telephone line 4 via the wired telephone adapter 2 and the wired telephone line adapter 1, and thereafter can talk in the same manner as a conventional telephone call.
As described above, the user can use the wired telephone 3 to make an incoming call of the cordless telephone by the same operation as the conventional wired telephone.

FIG. 2 shows the configuration of the wired telephone line adapter 1. In FIG. 2, reference numeral 11 denotes a DTMF generator constituting the wired telephone line interface means, and reference numeral 12 denotes a wired telephone line interface section constituting the wired telephone line interface means together with the DTMF generator 11. In this embodiment, three lines are provided. It has wired telephone line interface (I / F) circuits 121, 122, 123. 13
Is a switch as line switching means for switching a communication path, 14 is a wireless transmitting / receiving unit as line wireless transmitting / receiving means for wirelessly communicating with the wired telephone adapter 2 and comprising a wireless transmitting unit 141 and a wireless receiving unit 142; A control unit as a line control means, 16 is a power supply constituting the line power supply means, and 17 is a battery which constitutes the line power supply means together with the power supply 16 for performing a backup operation at the time of commercial power failure. Reference numeral 18 denotes an antenna serving as a line antenna connected to the radio transmitting / receiving unit 14, and 19 denotes a power source 16 for commercial (AC) use.
An AC power cable for connecting to a power source.

FIG. 3 is a diagram showing the configuration of the wired telephone adapter 2. In FIG. 3, reference numeral 21 denotes a wired telephone interface (I
/ F) section, 22 is a switch as a telephone switch means for switching a communication path, 23 is a telephone wireless transmission / reception means comprising a wireless transmission section 231 and a wireless reception section 232 for communicating with the wired telephone line adapter 1 wirelessly. , A control unit as telephone control means; 25, a power supply constituting telephone power supply means; 26, a battery constituting telephone power supply means together with the power supply 25 for performing a backup operation when a commercial power supply fails. . 27 is an antenna as a telephone antenna connected to the wireless transmitting / receiving unit 23,
28 is an A for connecting the power supply 25 to a commercial (AC) power supply.
C power cable.

FIG. 4 is a diagram showing the configuration of the wired telephone line interface circuits 121, 122 and 123 shown in FIG. 2. Reference numeral 51 denotes a modular jack which is a connection point with the wired telephone line. , A DC detector 53 for detecting a DC voltage supplied from an exchange (not shown) connected to a public telephone network, and 54 a two-wire wired telephone line and a cable telephone adapter in the wired telephone line adapter. 2-wire to 4-wire converter for converting 4-wire circuit, 5
Reference numeral 5 denotes a call signal detector for detecting a call signal supplied from an exchange (not shown) connected to the public telephone network. Reference numerals 56 and 57 denote amplifiers for amplifying the received voice and the transmitted voice, respectively. The wired telephone line interface circuits 121, 122 and 123 serve as interfaces with the control unit 15 with RING as an output of the DC detector 53, VDET as an output of the call signal detector 55, and a switch 52.
HOOK signal interface which is a control input of

The radio transmission / reception unit 14 shown in FIG.
The wireless transmission / reception unit 23 shown in FIG. 1 uses a digital time division multiple access / time division duplex (TDMA / TDD) technique,
The configuration is shown in FIG. In FIG. 5, reference numeral 601 denotes an encoder for digitally encoding a transmission audio signal; 602, a compressor for compressing the encoded digital signal on a time axis;
Is a multiplexer that multiplexes a digital audio signal and a control signal to generate a transmission data sequence, 604 is a modulator that modulates a high-frequency signal by the transmission data sequence, and 605 is a bandpass filter that removes unnecessary frequency components from the modulated high-frequency signal. , 606 are power amplifiers for performing high-frequency amplification, and 607 is a high-frequency switch for performing time-division transmission / reception. 608
Is a low-noise amplifier that amplifies the received high-frequency signal, 609 is a first mixer that converts the received high-frequency signal into a first intermediate frequency,
610 is a first intermediate frequency filter that passes only the first intermediate frequency from the output of the first mixer 609, 611 is a first intermediate frequency amplifier that amplifies the first intermediate frequency signal, and 612 is a second intermediate frequency signal that passes through the second intermediate frequency signal. A second mixer 613 that converts the frequency to an intermediate frequency signal is a second intermediate frequency filter 6 that passes only the second intermediate frequency from the output of the second mixer 612.
14, a second intermediate frequency amplifier for amplifying the second intermediate frequency signal, 615, a demodulator for demodulating a received data sequence from the second intermediate frequency signal, and 616, for separating voice data and control data from the demodulated received data sequence Demultiplexer,
617, a decompressor for time-expanding the separated audio data,
A decoder 618 reproduces an audio signal from the expanded received audio data. Reference numeral 619 denotes the modulator 604 and the first
This is a PLL synthesizer for supplying a signal to the mixer 609. The PLL synthesizer generates the same frequency as the transmission high frequency signal in the transmission time slot, and generates the difference frequency between the reception high frequency signal and the first intermediate frequency signal in the reception time slot. I do. As a result, the call wireless channel for setting the wireless line with the wired telephone line adapter 1 and the other wired telephone adapter 2
, Which operates as a wireless line selecting means for selecting a wireless communication channel between the slave units for setting a wireless line with the wired telephone line adapter 1 according to the output of the specific pattern detecting means 81.
And a wireless line with another wired telephone adapter 2 are selected and set.

Reference numeral 620 denotes an oscillator for supplying a signal to the second mixer 612, which generates a frequency corresponding to a difference between the first intermediate frequency signal and the second intermediate frequency. FIG. 6 shows an example of the data format of each of the wireless transmission / reception units 14 and 23 shown in FIG. As shown in FIG.
The period is msec, and each transmission and reception is composed of 4 slots. Each slot has a 240-bit configuration, and details are as shown in FIG.

FIG. 7 is a diagram showing the configuration of the wired telephone interface unit 21 of the wired telephone adapter 2 shown in FIG. 3, in which reference numeral 701 denotes a modular jack which is a connection point with the wired telephone, and reference numeral 702 denotes four wires in the wired telephone interface. The two-wire / four-wire converter 703 for converting between the wired circuit and the two-wire type wired telephone 3 is connected to the wired telephone 3 based on the line voltage supplied to the wired telephone 3 by the line voltage supply means.
A current supply circuit 704 for supplying a call current to the telephone; a current detection circuit 704 as off-hook detection means for detecting a call current flowing when the wired telephone 3 goes off-hook;
Reference numeral 5 denotes a call signal circuit for transmitting a call signal to the wired telephone 3, further detects that the wired telephone 3 has responded by going off-hook to the call signal, and stops transmission of the call signal. Reference numeral 706 denotes a call signal circuit transmitted from the wired telephone 3. D to receive DTMF signal
This is a DTMF receiver as TMF receiving means, and operates when the wired telephone 3 transmits a dial signal by a push button signal. The dial pulse transmitted from the wired telephone 3 is obtained as a pulse-like detection output by a current detection circuit 704 which also operates as a dial pulse detection means, and the control unit 24 decodes the detection output.

FIG. 8 is a diagram showing a configuration of the control unit 24 of the wired telephone adapter 2 shown in FIG. In FIG. 8, 81
Is a specific pattern detecting means for detecting a specific pattern of a data signal sequence of a dial signal transmitted from the wired telephone 3 and received by the wired telephone interface unit 21, and a control for setting an operation state of the wired telephone line adapter 1 based on the output. A microprocessor (MPU) operating as a control signal generating means for generating a signal; 82, a RAM for holding data; 83, a ROM for storing programs and the like; 84, an input / output circuit (I / O) as telephone control signal transmitting / receiving means / O). The input / output circuit 84 controls an output control signal group for the switch 22, transmission data (TxD), reception data (RxD), PL
An interface signal group with the L synthesizer 619 (P
LLLD, PLLLE, PLLCLK, PLLDAT
A), D for the wired telephone interface circuit 21
TMF control signals (DTMFD0, D1, D2, D
3), a current detection signal (IDET), a call signal transmission signal (RING), a call response detection signal (RESPONSED)
ET).

FIG. 9 shows the wired telephone line adapter 1 shown in FIG.
3 is a diagram showing a configuration of a control unit 15 of FIG. In FIG. 9, 9
1 operates as control signal decoding means for receiving a control signal for setting the operation state of the wired telephone line adapter 1 received by the wireless transmitting / receiving unit 14 and decoding the content of the signal, and thereby operates the wired telephone according to the decoded signal. A microprocessor (MPU) for setting the operation state of the line adapter 1, 92
Is a RAM for storing data, 93 is a ROM for storing programs and the like, and 94 is an input / output circuit (I / O) as a telephone line control signal transmitting / receiving means. Input / output circuit 9
Reference numeral 4 denotes an output control signal group for the switch 13, transmission data (TxD) and reception data (Rx
D), an interface signal group with the PLL synthesizer 619 (PLLLD, PLLLE, PLLCLK, PL
LDATA), wired telephone line interface circuit 12
DTMF detection signals (DTMFD0, D1, D
2, D3), a call detection signal (RINGDET), a line capture signal (HOOK), and a line voltage detection signal (VDET).

When the user of the wired telephone 3 picks up the handset 33 and goes off-hook, a current flowing through the wired telephone 3 is detected by the current detection circuit 704, and the signal is input to the input / output circuit 84 of the control unit 24. . Control unit 24
Inside, the microprocessor 81 detects this and sets P
The wireless transmission / reception unit 23 is activated by using the interface signal group with the LL synthesizer 619, and the transmission data T
The required data is transmitted to xD, and the wired telephone line adapter 1 and the wireless line are set. In the wired telephone line adapter 1, the received data RxD received by the wireless transmitting / receiving unit 14 is input to the input / output circuit 94 of the control unit 15 and taken into the microprocessor 91. , And activates the wireless transmission / reception unit 14 using a group of interface signals with the PLL synthesizer 619, and transmits necessary data to the transmission data TxD to set a wired telephone adapter and a wireless line. When the setting of the wireless lines of the wired telephone line adapter 1 and the wired telephone adapter 2 is completed as described above, the user of the wired telephone 3 dials the telephone number of the calling party. In the case of pulse dialing, a dial signal from the wired telephone is detected by a call current detecting circuit 704 in the wired telephone interface 21 of the wired telephone adapter 2, and this signal is decoded by the microprocessor 91 via the input / output circuit 94. Is done. If the dial signal is a DTMF signal, the DTMF receiver 70 in the wired telephone interface 21
6 and is decoded by the microprocessor 91 via the input / output circuit 94 in the same manner as in the pulse dialing. The dial number decoded in this way is encoded and transmitted as transmission data TxD to the wireless transmission / reception unit 23, and received by the wired telephone line adapter 1, which is the communication partner. In the wired telephone line adapter 1, the received data is input from the wireless transmission / reception unit 14 to the input / output circuit 94, decoded by the microprocessor 91, and output according to the dial signal system of the wired telephone line, that is, the pulse dial or DTMF signal system. . In the case of the DTMF signal, the dial data is sent from the input / output circuit 94 to the DTMF generator 11 of the wired telephone line interface 12, and the DTMF signal is output.
The generator 11 sends a DTMF signal to the wired telephone line according to the data. When the dial signal is a pulse dial, the microprocessor 91 of the control unit 15
HOOK signal is blocked and released according to the dial signal.

At the time of receiving a call to the wired telephone line, a ringing signal detector 55 of the wired telephone line interface circuit in the wired telephone line adapter 1 detects a ringing signal, and this signal is input to the input / output circuit 94 of the control unit 15. You. In the control unit 15, the microprocessor 91 detects this, and
The wireless transmission / reception unit 14 is activated using the group of interface signals with the synthesizer 619, and the transmission data TxD
, And sets the wired telephone adapter 2 and the wireless line. In the wired telephone adapter 2, the reception data RxD received by the wireless transmission / reception unit 23 is transmitted to the control unit 2.
4 is input to the input / output circuit 84 and the microprocessor 81
Captured inside. The microprocessor 81 recognizes the line setting request from the wired telephone line adapter 1 from the contents of the reception data TxD, activates the wireless transmission / reception unit 23 using a group of interface signals with the PLL synthesizer 619, and further activates the transmission data TxD. The data is transmitted, a wired telephone line adapter and a wireless line are set, and an incoming call signal is transmitted to the wired telephone 3. The incoming call signal is controlled by the microprocessor 81 from the RING signal of the input / output circuit 84, and the call signal circuit 705 of the wired telephone interface circuit 21 is operated by this signal. When the user of the wired telephone 3 picks up the handset 33 of the wired telephone 3 and responds to the incoming call, the call signal circuit 705 detects this and is input to the microprocessor 81 via the input / output circuit 84. When detecting the response of the user, the microprocessor 81 stops the RING signal of the input / output circuit 84 and ends the calling. As described above, when the setting of the wireless lines of the wired telephone line adapter 1 and the wired telephone adapter 2 is completed, a telephone call can be made using the wired telephone 3.

The call is terminated by the user of the wired telephone 3
3 by on-hook. Wired telephone 3
Is on-hook, the call current flowing to the wired telephone 3 disappears, and the current detection circuit 704 in the wired telephone interface circuit 21 of the wired telephone adapter detects this. This detection output is input to the input / output circuit 84 of the control unit 24, and is detected by the microprocessor 81. Thereafter, the microprocessor 81 performs a call end operation, and sends predetermined data to the transmission / reception unit 23 as transmission data TxD via the input / output circuit 84. The transmitted data is received by the wireless transmitting / receiving unit 14 of the wired telephone line adapter 1 by the wireless transmitting / receiving unit 23 and sent to the control unit 15 as received data RxD. In the control unit 15, the microprocessor 91 receives the above-mentioned received data via the input / output circuit 94,
Perform the call end operation.

The cordless telephone apparatus according to the present invention has a function setting from a wired telephone 3 connected to a wired telephone adapter 2 to an operation mode and a call mode of the wired telephone adapter 2, a wired telephone line adapter 1 connected to a wired telephone line.
Operation mode can be set. FIG. 10 shows an example of the setting method. The operation modes of the wired telephone adapter 2 include, for example, a receiving volume, a ringing volume, and a ring tone. The telephone mode of the wired telephone adapter 2 is fixed to a telephone call with the wired telephone line adapter 1 and fixed to a telephone call with another wired telephone adapter. When a call with the wired telephone line adapter fails, a call with another wired telephone adapter is attempted, and when a call with another wired telephone adapter fails, a call with the wired telephone line adapter 1 is attempted. The operation mode of the wired telephone line adapter 2 includes pulse dial / DTMF. The above function setting is started by inputting a specific dial from the wired telephone 3, and is completed by inputting a set value (parameter) thereafter.

With the above operation, the wired telephone line adapter 1 connected to the wired telephone line 4 functions as a cordless telephone base unit for communicating with the cordless telephone handset via a radio high-frequency signal, and is connected to the wired telephone 3. Since the wired telephone adapter 2 functions as a cordless telephone handset that communicates with the cordless telephone base unit via a radio high-frequency signal, the user can perform a cordless telephone call with the cordless telephone. Therefore, the existing wired telephone used by the user can be used as it is without waste, and a telephone call using the wired telephone can be used even in a room where the wired telephone line 4 is not wired.

In the above embodiment, for example, a wired intercom device (not shown) is installed in the same room where the wired telephone 3 is installed, and a power supply means for supplying power to the wired intercom device, and a pusher from the wired intercom device. Push button detecting means for detecting a button signal, and an interphone for converting a transmission voice signal from a wired intercom apparatus into a radio high-frequency signal and transmitting the same, and transmitting a voice signal reproduced from the received radio high-frequency signal to the wire intercom apparatus A wireless transmission / reception means, an intercom antenna connected to the intercom wireless transmission / reception means, an intercom control means for controlling the push button detection means and the intercom wireless transmission / reception means, and an interphone for supplying power to the intercom wireless transmission / reception means and the intercom control means Power supply means By connecting a wired intercom adapter (not shown) to the above-mentioned wired intercom apparatus, an intercom call can be made between the above-mentioned wired telephone 3 and the wired intercom apparatus, and a wired telephone call can also be made from the wired intercom apparatus. it can.

[0024]

As described above, according to the present invention, a wired telephone line adapter connected to a wired telephone line functions as a cordless telephone base unit for communicating with a cordless telephone handset via a radio high-frequency signal. The cordless telephone adapter connected to the cordless telephone works as a cordless telephone slave unit that communicates with the cordless telephone base unit via a radio high-frequency signal, so that the user can make a cordless telephone call with the cordless telephone. Therefore, the existing wired telephone used by the user can be used as it is without waste, and a telephone call using the wired telephone can be used even in a room where a wired telephone line is not wired.

[Brief description of the drawings]

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

FIG. 2 is a configuration diagram of a wired telephone line adapter according to the embodiment;

FIG. 3 is a configuration diagram of a wired telephone adapter according to the embodiment;

FIG. 4 is a configuration diagram of a wired telephone line interface unit according to the embodiment;

FIG. 5 is a configuration diagram of a line wireless transmitting / receiving section and a telephone wireless transmitting / receiving section of the embodiment.

FIG. 6 is a data format diagram of the wireless line of the embodiment.

FIG. 7 is a configuration diagram of a wired telephone interface unit according to the embodiment;

FIG. 8 is a configuration diagram of a telephone control unit of the embodiment.

FIG. 9 is a configuration diagram of a line control unit of the embodiment.

FIG. 10 is an explanatory diagram of a function setting method according to the embodiment.

[Explanation of symbols]

 1 Wired telephone line adapter 2 Wired telephone adapter 3 Wired telephone 4 Wired telephone line

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) H04Q 7/38 H04Q 3/60 H04Q 7/00 H04M 1/00

Claims (5)

(57) [Claims] 1. A wired telephone line adapter for converting a received signal from a wired telephone line into a wireless high-frequency signal and transmitting the converted signal, and transmitting a line signal reproduced from the received wireless high-frequency signal to the wired telephone line; A wired telephone adapter configured to transmit a telephone signal reproduced from a wireless high-frequency signal received from a telephone line adapter to a wired telephone, convert a transmission signal from the wired telephone into a wireless high-frequency signal, and transmit the converted signal. The adapter includes a specific pattern detecting means for detecting a specific pattern of a data signal sequence of a dial signal transmitted from the wired telephone and received by the wired telephone interface means, and operates the wired telephone line adapter by an output of the specific pattern detecting means. Having control signal generating means for generating a control signal for setting a state, The wired telephone line adapter includes a control signal decoding unit that receives the control signal sent from the wired telephone adapter and decodes the content of the signal, and the telephone line according to the signal decoded by the control signal decoding unit. A cordless telephone device for setting an operation state of an adapter. 2. A wired telephone line adapter for converting a reception signal from a wired telephone line into a wireless high-frequency signal and transmitting the converted signal, and transmitting a line signal reproduced from the received wireless high-frequency signal to the wired telephone line; A wired telephone adapter configured to transmit a telephone signal reproduced from a wireless high-frequency signal received from a telephone line adapter to a wired telephone, convert a transmission signal from the wired telephone into a wireless high-frequency signal, and transmit the converted signal. An adapter configured to detect a specific pattern of a data signal sequence of a dial signal transmitted from the wired telephone and received by the wired telephone interface unit; and an output of the specific pattern detection unit.
And a radio channel selection means for selecting said wired phone handset call between radio channels for radio channel setting and call radio channels and other of said wire telephone adapter radio channel for setting the line adapter by the radio A cordless telephone device, wherein when a line selection unit fails to set a wireless line with the wired telephone line adapter, a wireless line with the other wired telephone adapter is automatically set. 3. The wired telephone adapter comprises one or more wired telephone interface means, a telephone wireless transmitting / receiving means for simultaneously transmitting and receiving one or more channels, the wired telephone interface means and the telephone wireless transmitting / receiving means. 3. The cordless telephone device according to claim 2, further comprising telephone switch means connected to the telephone set for setting a communication path. 4. A wired telephone line adapter for converting a received signal from a wired telephone line into a wireless high-frequency signal and transmitting the converted signal, and transmitting a line signal reproduced from the received wireless high-frequency signal to the wired telephone line; A wired telephone adapter configured to transmit a telephone signal reproduced from a wireless high-frequency signal received from a telephone line adapter to a wired telephone, convert a transmission signal from the wired telephone into a wireless high-frequency signal, and transmit the converted signal. An adapter configured to detect a specific pattern of a data signal sequence of a dial signal transmitted from the wired telephone and received by the wired telephone interface unit; and an output of the specific pattern detection unit.
And a radio channel selection means for selecting said wired phone handset call between radio channels for radio channel setting and call radio channels and other of said wire telephone adapter radio channel for setting the line adapter by the radio A cordless telephone device, wherein when a line selection unit fails to set a wireless line with the other wired telephone adapter, a wireless line with the wired telephone line adapter is automatically set. 5. The wired telephone adapter includes one or more wired telephone interface means, a telephone wireless transmitting / receiving means for simultaneously transmitting and receiving one or more channels, the wired telephone interface means, and the telephone wireless transmitting / receiving means. 5. The cordless telephone device according to claim 4, wherein said cordless telephone device comprises telephone switch means connected to said telephone line for setting a communication path.