KR910010006B1 - System for interfacing a standard telephone set with a radio transceiver - Google Patents

Abstract

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Description

System to interface a standard telephone with a radio transceiver

1 is an overall block diagram of a typical cell (ce11) wireless switched network incorporating the interface system of the present invention.

2 is an overall block diagram of an interface system of the present invention.

3A-3D are detailed schematic views of the interface board portion of the interface system.

4 is a schematic diagram of a power board of an interface system.

5 is a schematic diagram of an adapter board of the interface system of the present invention.

* Explanation of symbols for the main parts of the drawings

1: standard touch tone / line dial telephone 3: radio transceiver

5: interface board 7: ring power board

9: adapter board

The present invention relates to a system for interfacing a wireless transceiver with a standard telephone that is directly or indirectly connected to a telephony system in an entire telephone network. In particular, the present invention is suitable for interfacing telephones and conventional shell mobile radio transceivers in some of the current cell radio systems within the region.

Conventional telephone network systems typically require transmission lines or cables from the telephony system to subscriber fixed locations such as homes or offices. The telephone trunk line entering the fixed position is connected to one or more individual telephones of touch tone or pulse dialing variations or switching devices combined with other forms of PBX or internal office system networks.

Conventional telephone network systems have the disadvantage of laying expensive transmission lines, especially in areas outside the densely populated area.

Another form of telephone system is a cellular wireless telephone system. The system is provided for communication between mobile base stations such as automobiles and the telephone network. Such a cell radiotelephone system is carried by a vehicle, has one or more cell transceiver stations having computer logic coupled to the transceiver and connected to an 800MC fixed antenna.

The cell receiver-transmitter station is connected to a computerized central switching center that interfaces with the telecommunication system. The transmission between the mobile base station transceiver and the cell station or auxiliary station occurs by high speed digital communication.

Base station mobile radios carried by automobiles typically include transmitters, receivers, and computer logic (hereinafter referred to as transceivers) mounted within a car trunk. The transceiver is connected to a control head mounted in the passenger compartment to be operable by the user. Typically, the control head includes a microphone and a touch pad that transmits the code to the transceiver to dial and control the transceiver. For example, when a telephone number is dialed, the user enters the telephone number manually and the number is displayed and stored in the transceiver memory at the same time. When the user checks timely and checks to see if the dialed number is correct, the user operates the transmit button to provide the transmit code to the transceiver so that the number stored in the memory is transmitted to the transceiver digitally. The dialed number is sent by the telephone company's central office into a binary data stream for final reception.

The cellular transceiver control head interfaces with a trunked transceiver in a way that is substantially different from the way standard telephones interface with telecommunication systems. A standard telephone cannot be combined with a conventional cell radio transceiver since the input required to control the transceiver and the transceiver output provided to the control head are simply incompatible with a typical touchtone / pulse dial telephone.

The present invention relates to interfacing a conventional telephone handset with a standard cellular radio transceiver.

With the interface system of the present invention, the telephone can receive telephone calls using conventional methods.

Similarly, standard radio transceivers, such as those used in cell radio systems, may be compatible with telephone handsets without modification.

With the interface system of the present invention, the cellular transceiver can be used as a fixed station connected to a home or office without requiring any changes to the internal home or office telephone network. The telephone service can be provided to the home or office by wireless transmission, eliminating the need for expensive transmission lines. Furthermore, the present invention makes the installation of radiotelephone communication such as a conventional cell radiotelephone system practical in a population density area.

The invention can be packaged in a fairly small housing and combined with an on-premises switching network that can be associated with a standard telephone or each packaging device to be the next telephone trunk line. The device consists of a standard wireless transceiver, such as a cell mobile radio. Only parts that are typically mounted in the trunk are used. This omits the control head, including the receiver, transmitter and computer logic. The system uses a small 800MC gain antenna that can be mounted on the roof of the building. Preferably a small directional antenna aimed at the current remote cell transmitter-receiver antenna can be used. Moreover, the system includes a power supply designed to generate enough current (at 12 volt direct current) to operate the typical functions of the radio and telephone handsets. A rechargeable high current 12 volt battery can be used in case of power failure.

The radio transceiver is combined with conventional telephones by a new interface system. The interface system includes circuitry that simulates a typical telephone ring and dial tone signal. When the telephone handset goes off hook, an internal tone generator in the interface is coupled across the ring and tip electrodes to generate a tone that simulates a dial tone. The tone generator generates a pulse to simulate a reorder tone while the system remains hooked off for more than a period of time without any dialing or otherwise no communication occurs. The interface system, which receives an alarm signal from the transceiver when the next call is received, supplies the ring signal to the telephone ring circuit. It rings until the phone is off hooked. When the hook is off, the ring circuit is disabled and the ringing stops and the connection with the transceiver is completed.

The interface system of the present invention comprises means for converting a touch tone or pulse dialed number, ie, digits, into digital data for transmission by a transceiver. As each digit is dialed, a torch tone, or pulsed dialed signal, is converted into digital data for storage at the transceiver. After all digits are dialed, the interface system automatically determines when the last digit or digit is generated and transmits a transmit coded signal to the transceiver. In response to the transmit code (similar to manually pressing a button in a conventional cell radio system) the transceiver completes the call by transmitting by the telephony system to ultimately decrypt the digital data. When the call is complete and the handset is on hook, an end signal is provided to the transceiver to indicate the on-hook state.

It is an object of the present invention to provide a novel and unique interface circuit for interfacing a standard telephony type device with a cell radio type wireless weapon transceiver.

It is another object of the present invention to make it fully compatible with conventional telephones without modifying the cellular standard transceiver into a transceiver or current cell network. Therefore, current wireless communication systems such as cell radiotelephone systems can be integrated with fixed station conventional dialing devices.

In particular, an object of the interface system of the present invention is to determine when a touch tone, ie, a pulse dial digit, is converted into digital data for storage in the transceiver and the last number or digit is dialed to provide to the transceiver for the final transmission of the transmitted signal. have.

It is a further object of the present invention to provide a telephone handset with ring and dial tones for a suitable period of time so that the handset can be operated in a known manner.

It is another object of the present invention to avoid expensive line transmission systems by employing standard cellular radio transceivers in fixed locations with conventional telephone handsets to provide fixed locations and telephony over existing cell networks.

The above and other objects of the present invention will become more apparent from the following detailed description with reference to the accompanying drawings.

A typical cell radiotelephone network is shown in FIG. The telephony system 300 is connected to many telephones in the region, including a business office via a domestic exchange center network and a business central office. The telephony system interfaces with a master cell switching center 302, which interfaces a telephony system 300 with a master cell switching center 302, which interfaces various cell transmitter-receiving station remote system sites 304. These remote system sites feature one or more transmitter and receiver devices mounted at 150-300 feet power with antennas. These remote system sites 304 are connected to the master cell switch center 302.

The base station receiver and transmitter devices are usually located in the trunk of the vehicle 306 and are generally comprised of a transmitter, receiver, and computer circuitry (hereinafter referred to as a transceiver) to provide an unwired transmission path from the base station mobile device to the remote system site. Portable cell phone 308 may be used to communicate with a remote system site 304 antenna. In addition to the transceiver mounted in the trunk, a control head (not shown) consisting of a specially designed keypad and display panel is mounted in the passenger compartment and cabled with the transceiver.

As shown in FIG. 1, the interface system 314 can be configured to provide a touch-tone or pulse dial diversity telephony device, such as a standard telephone 1, a transceiver 3, such as a standard cell mobile radio transceiver. It is provided to combine with. The transceiver 3 is the trunk mount of the normal cell radio package. This includes transmitters, receivers and associated computer logic.

As shown in FIG. 1, the system 310 is coupled with a telephony device 1 and a central exchange center box 312 commonly used in offices. In such a system, the individual transceivers 3 and the interface system 314 are combined with the next trunk line. The transceiver 3 is coupled to an antenna 316 which is a small directional 800 mc gain antenna. By using the directional antenna 316 pointing to the nearest remote system site 304, a larger range can be obtained than in the omnidirectional antenna typically used for cell transceivers mounted in automobiles.

2 is a general layout of a telephony device, such as an interface system combining a standard touchtone / pulse dialing telephone 1 with a radio transceiver 3. In a preferred embodiment, the transceiver 3 is a standard cell radio transceiver such as NEC TR5E800-2B. The use of such a wireless transceiver provides a system that is operable over a standard cell wireless network as described above. It should be noted that other cellular transceivers of the cellular type may be used and modifications may be required depending on the particular transceiver characteristics.

Moreover, the present invention has the capability of a non-cell communication system that may employ a wireless unwired link between a base station and a central station that is ultimately interconnected with a central office of a local or domestic telephone network.

For example, an IMTS transceiver may be used. Moreover, the transceiver may be part of a compander system as known in the art. A radio transceiver may be used that is controlled by an input similar to the input at the cell transceiver and provides an output similar to the output typically provided by the cell transceiver (alarm signal, etc.). The transceiver 3 is similar to a system generally installed in a vehicle, but may be installed without a control head mounted in a passenger compartment of the vehicle.

The telephone 1 and the radio transceiver 3 are, as shown in FIG. 2, a transceiver coupling means, such as an interface board 5, a telephone coupling means, such as a ring power board 7 and a telephone number digital conversion means, for example. And is coupled by an interface system 314 comprising a three printed circuit board called adapter board 9. The interface system is provided on separate boards for convenience and various functions of each board may be provided on a single board or may be provided on multiple circuit boards at the user's convenience, as will be apparent to those skilled in the art. The interface board 5 is shown in FIGS. 3A-3D, the power board 7 is shown in FIG. 4 and the adapter board 9 is shown in FIG.

In Figures 3a-3d the telephone with ring and tip terminals is connected to the interface board and terminals 1 and 2 at J1. When the telephone goes off-hook, a loop current flows to excite the current sensing relay 11.

The current sensing relay 11 has a normally open contact connected with a standard touch tone / rotary dial decoder-converter circuit 13. The circuitry 13 is a Teltone M-948 DTME receiver, although an equivalent converter or decoder circuit may be employed.

핀(Pin) (펄스 다이얼 입력을 수신하는데 또는 사용되는것)을 통하여 변환기 회로(13)와 결합된다.In particular, the current sensing relay 11

It is coupled with the converter circuit 13 via a Pin (used to receive or use a pulse dial input).

The input is also used to indicate the off-hook state provided to the buffer 15 after an internal delay of approximately 200 msec. The output of the buffer 15 turns on the transistor 17, which excites the relay 19 to connect the telephone with the buffer 25 via the modulation chokes 21, 23. The output of the buffer 25 is connected to the SIG IN pin of the converter 13. This provides the tone dialing input to the converter circuit 13.

Furthermore, by turning on the transistor 17, the base of the transistor 27 is driven low to conduct the transistor 27. This connects the IGN terminal J1-13 with a 12 volt level to allow outgoing ca11. The buffer 15 is also connected to a NAND gate 29 having an output connected with one input of the latch circuit 31 (see also 3d).

The latch circuit 31 includes NOR gates 31A and 31B. When the telephone handset is in the final hungup, the NAND gate 29 (inverter) resets the latch 31 so that the output of the latch 31 remains low. The low output is connected to the input of the NOR gate 33 which makes the output of the gate 33 high by providing a low output at the inverter 29 when the handset turns off the hook. The inverter 35 connected with the output of the gate 33 has a low output. The output of inverter 35 is coupled with the series of logic NOR gates 37. Gate 37A has its other input connected to alarm latch circuit 157. The input from latch 157 to 37A is low at this point.

Therefore, the two low inputs of the gate 37A turn the transistor 41 on by making the output of the gate 37B high (Fig. 3B).

The gate 37B output is high until a timer comprised of counter 59 and decimal decoder (or converter) circuit 39 counts 15 seconds.

The transistor 41 is turned on to provide a ground return path for the dial tone generator 43. Dial tone generator 43 includes 350 and 440 Hz sine wave generators 43A and 43B whose output is connected to input of hybrid circuit 95 at amplifier 45. Dial tones are provided to the amplifier 45 via a path and alternately via tip and ring contacts that give the dial tone through the operational amplifier buffer 47 into the telephone receiver.

Dialing as described above may be performed by either touch tone or rotary dialing, depending on the standard handset used.

In either case, the specific telephone number to be dialed is decoded by the converter circuit 13. The dialed number is converted into a binary coded decimal output provided at the outputs D3, D2, D1, D0 of the converter 13. Briefly, only tone dialing is described below and it is recognized by those skilled in the art that pulse dialing can be decoded by the circuit 13.

When the touchtone button of the handset is pressed, a tone is provided to the SIG IN input of the circuit 13 via the buffer 25. The output DV of the converter circuit 13 goes high each time dialing occurs (i.e. every time the handset button is pressed). The output from DV is connected to the buffer 49 and to the NAND gate 51 which is alternately connected to the NAND gate inverter 53. The other input to gate 51 is from timers 59 and 39. The input to the gate 51 is high unless the timers 59 and 39 count 15 seconds in the manner described.

The output of the inverter 53 is connected to the latch circuit 31 (at the input of the gate 31B). This sets the latch 31 at the high output of the inverter 53.

The high power occurs as soon as the key of the telephone is pressed and dialing is initiated. The transistor 41 is turned off by setting the latch 31 via the NOR gate 37 and thus the dial tone generator 43 is turned off.

Thus, the dial tone generator 43 is turned off the moment dialing is started. The interface system is provided for reorder tones when the system remains off hook for more than a predetermined period of time.

The multivibrator 55 (FIG. 3D) which has a 1 second period is provided. Multivibrator 55 is coupled with binary counter 59 through inverter / buffer 57. Binary counter 59 has an output terminal coupled with decimal converter 39. The reset terminal of the counter 59 is connected to the output of the OR gate 61. Inputs to the OR gate 61 are the outputs of the inverter 29 (off-hook) and the inverter 53 (from the DC pin of the converter 13) and the transmit flip-flop 63 (described below) counter 59 Continues counting until reset to OR gate 61 by either of the three inputs. When the timers 39 and 59 count 15 seconds while the tone is off-hook and no dialing occurs, the input to the gate 51 goes low and its output goes high to change the state of the DV inverter 53. Let's do it.

In addition, the low output of the decoder 39 is provided to the EN input of the counter 59 to stop the counter 59. Yet the 15 second output of decoder 39 is provided as input to gates 37C and 37D.

The output of the gate 37C through the gate 37B causes the dial tone generator 43 to be disabled.

On the other hand, the output of the gate 37D turns on and off the transistor 41 at one second intervals. Thus, one-second intervals of dial tones by the dial tone generator 43 appear in the amplifier 45 and the telephone across the terminals A-A. This reorder continues until the phone hangs up before dialing can be retried.

Returning to the dialing function, each number is generated by the telephone handset so that the tone reflecting that number appears at the SIG IN input of the converter 13 and the tone is decoded in BCD format and the terminals D0, D1, ... D2, D3) and three-phase (TRI-STATE) buffer 67.

As each number or digit is dialed, the output of the gate 51 goes low and data is transferred from the converter circuit 13 to the junction point J3 of the adapter board of FIG. 5 (Fig. 3 (b)). Enable 3-phase buffer 67 to connect As each digit is dialed at the same time and the output of the DV inverter 53 goes high, the high output of the inverter 53 causes a positive data strobe pulse to cause a DS terminal through the capacitor 71 and the OR gate 73. It is provided to the OR gate 69 to form it for delivery to J3-11.

This data strobe pulse is provided to the adapter circuit and will be described later. Each dialed number is provided to a shift register 75 on the adapter board at some point where the numeric data is converted in series and transmitted to the data line 77 to eventually reach the transceiver via terminal J2-5. It is enough to explain that. Serial data indicative of the dialed number is stored at the transceiver in the conventional manner of last transmission when a SEND signal is provided.

Separating each number provided to the transceiver is a special predetermined code called an A11 KEY RELE-ASED (AKR) signal. This is provided in the following manner.

When the button of the telephone is released, the DV output of the converter 13 goes low which provides a low output from the DV inverter 53 (at the same time, the output of the gate 51 goes high so that the three-phase buffer 67 Disables and breaks any numeric data from the data line).

출력은 로우로 진행하고 데이타 라인에 저장된 AKR을 위해 소정부호를 연결하는 3상 버퍼(81)를 인에이블시킨다.The negative pulse formed at the capacitor 71 causing the one short is called the AKR one short 79. A 200 msec long pulse is provided at the Q output of the AKR One Short 79. At the same time

The output goes low and enables a three-phase buffer 81 that connects a predetermined sign for AKR stored on the data line.

A 200 msec pulse at the Q output of the one shot 79 is provided to the OR gate 73 through the capacitor 83 to provide a positive data strobe (DS) pulse at the beginning of AKR code transmission. After the number or digit of the correct number has been dialed, the transceiver is automatically determined in the manner described below, and the SEND-coded signal is sent to the data line and finally transmitted to the dialed number, ie the number stored in its memory. It is necessary to reach the transceiver indicating.

In the conventional mobile cell radio system, the SEND code is generated manually by the system user after dialing the correct digit number and visually determined whether the number is correct. Then, when the user presses the SEND button sensed by the transceiver, the information is transmitted. Since standard telephones do not have a comparison transmit button, the decision when a transmit code is generated is logically determined as described below.

는 로우로 진행하여 AKR 원쇼트 펄스의 트래일링 에지가 래치(85)의 CK 입력을 클록할 때까지 로우로 남아있다. AKR 펄스후의 래치(85) 리세트는 래치(85)의

출력을 하이로 진행하게 한다. 이 하이출력은 NAND 게이트(87)의 입력에 결합된다.The SEND code is conveyed in the following manner. The DV-AKR latch 85 is set by the output of the DV inverter 53 when the digit is dialed. Output of latch 85

Goes low and remains low until the trailing edge of the AKR one short pulse clocks the CK input of latch 85. The latch 85 reset after the AKR pulse is applied to the latch 85

Causes the output to go high. This high output is coupled to the input of the NAND gate 87.

As determined in the manner described below, the input of inverter 90 goes low when the last digit or digit is dialed. The output of inverter 90 goes high and is provided to the second input of inverter 87. Thus, after the AKR is transmitted, the output of inverter 87 goes low.

Therefore, after all digits or numbers are dialed and the last AKR pulse is triggered, the output of inverter 87 goes low.

The output of the gate 87 is provided to the input of the gate 89. So the output of gate 89 goes high and triggers support one short 91. After 200 msec, the Q output of delay one short 91 goes high to trigger the SEND one short 93 with the trailing edge.

출력은 소정 SEND 부호가 인코드된 3상 버퍼(95)를 인에이블한다.Of SEND one shot (93)

The output enables a three-phase buffer 95 having a predetermined SEND code encoded.

A predetermined SEND code is provided to the data line to trigger the buffer 95 by the SEND one short 93. At the same time, the Q output of the SEND one-shot 93 is the output of the OR gate 69 where the output via the capacitor 71 causes a positive data strobe pulse on the data strobe (DS) line through the OR gate 73 to J3 on pin 11. Provided as input.

This data strobe pulse goes to the adapter circuit board. The trailing edge of the Q output of SEND one short 93 triggers the AKR one short 79 and provides an AKR load on the data line in the manner previously described.

Similarly, data strobe pulses are sent through the condenser 83 at the beginning of the AKR one short cycle. After each information is passed, it is recognized that the AKR code is transmitted on the data line and eventually reaches the transceiver. That is, after each number has been passed, or after the SEND code has been passed.

This provides each piece of separate information, allowing the transceiver to distinguish between the same.

Of course, this AKR code is not used for transceivers that do not include the AKR function. For example, a general electric transceiver regarded as 'GE STAR' does not require transmission of an AKR encoded signal between each number or transmission information. In GE systems, strobe pulses are not used as an indication to separate discrete information.

After the SEND code followed by the AKR code, the transceiver completes the connection if necessary. That is, as is well known to those skilled in the art, the transceiver is delivered in high-speed digital form and the telephone number information finally received by the telephone station allows the internal connection with the telephone network and calls the requested party.

Once the call is completed, an audio connection between the telephone and the transceiver is provided via a two to four wire hybrid circuit 95.

Full double action occurs. An audio input is provided from the transceiver on the terminal J2 line 8 and an audio output is provided to the transceiver through J2 of the pin 2. As is well known, cellular transceivers have separate audio inputs and audio outputs. This is in contrast to conventional telephones where both audio inputs and audio outputs occur on one channel.

Thus, the hybrid circuit 95 converts two channels, that is, a four-wire connection with a transceiver, into a single channel, and a two-wire connection through pins A-A into a telephone handset. The audio channel from the transceiver to the interface system is provided on a two wire connection from terminal J2 of pins 8 and 1.

The audio channel from the interface to the transceiver is provided from terminal J2 of pins 1 and 2. Audio from the transceiver passes through amplifier 45, bridge circuit 209 and operational amplifier buffer 47.

In particular, the audio output through amplifier 47A is connected to the input of amplifier 47B. The return path from the amplifier 47B through the resistor 211 is provided through the transformer 213 and is provided across the ring contacts J1-1, 2 through the tip and terminals A-A.

Audio channels from the telephone are provided as inputs of the ring contacts and amplifiers via tips and terminals A-A through transformer 213. The output of the amplifier 47B is provided to the input of the amplifier 47A, the fed back output and the input of the amplifier 215. The audio output of amplifier 215 is provided to the transceiver via terminal J2, pin 2.

After the call is completed, when the telephone handset hangs up (puts on the hook), an END code is provided to the transceiver to signal the end of the call via the data line. This is done as follows:

First, the off-hook terminal of converter circuit 13 goes low and is provided as a high signal to the output of gate 29 (via buffer 15).

출력은 데이타 라인상에 소정 END 코드신호를 제공하기 위해 3상 버퍼(99)를 인에이블한다.The high output of gate 29 is provided to the input of END one short 97 which triggers a 200 msec pulse. END of one shot (97)

The output enables three-phase buffer 99 to provide a predetermined END code signal on the data line.

The Q output of the one shot 97 is provided through the OR gate 69 to cause a positive pulse through the capacitor 71 which in turn provides a data strobe pulse on the data line described above.

Upon completion of the END one short pulse, the trailing edge of the pulse triggers the AKR one short to generate an AKR sign on the data line as described above.

Note that the telephone handset is off hooked prior to the triggering of the SEND code for the duration of the telephone dialing.

So some means for forbidden audio that can come from the transceiver is required. In addition, some means for inhibit reorder codes are required after the SEND code is generated. This is done in the following way.

SEND one short 93 sets SEND flip-flop latch 63 when SEND one short 93 is triggered so that a SEND code is provided on the data line.

That is, the Q output of the SEND one short 93 is provided to the input of the SEND latch 63. The SEND latch is reset by a pulse generated through the condenser 101 coupled to the off hook buffer 15.

Thus, when off-hook, the SEND latch 63 is reset and set by the operation of the SEND one short 93.

When set by the SEND one short 93, the Q output of the latch 63 is provided as an input to the OR gate 61 which in turn resets the binary counter 59 (FIG. 3D).

The binary counter 59 maintains the reset and prevents tire operation after the connection is made with the cell transceiver to avoid reordering tones.

출력은 하이가 되고 트랜지스터(105)에 OR 게이트(103)를 통해 제공된다는 것에 주의하여야 한다(제3b도).Prior to the setting of the SEND latch 63, the latch 63

Note that the output goes high and is provided to the transistor 105 via the OR gate 103 (FIG. 3b).

Transistor 105 is turned on and provided with a ground connection to resistor pair 107 to inhibit transmission of audio from terminal J2, pin 8 through hybrid circuit 95. So the audio channel from the transceiver is muted at least until the SEND code occurs.

In addition, the receiver audio is muted 200 msec after the telephone key is pressed. This is done by the output of the DV inverter 53 coupled to the audio mute one short 109 and the OR gate 103. So when the key is pressed the audio is muted for at least 200msec.

The mute during this key depression is depressed after the telephone key is made to the audio connection with the transceiver.

Tone generation signals are often used as codes for bank computers. The transceiver can detect the digit after the SEND code is transmitted and regenerates and delivers the tone. Such reoccurring tones will be 'HEARD' on the connected audio channel without muting.

Now consider how the interface system is automatically determined when the SEND code is provided on the data line and finally reaches the transceiver.

In other words, we will consider how the system determines the correct number of digits to be dialed.

When the last digit or number or phone number is dialed so that when the SEND load is provided on the data line, the instant is determined by looking at the various initial digits or numbers of the phone number and determining whether '1' or '0' is located in the first few digits. Determine the system. Logical analysis is done from this information. To design the logic to make an accurate decision, the system must be designed by knowing the various combinations of '1' and '0' typically used in telephone networks.

In the present embodiment, the following logic for the U.S telephone system is designed in the system.

If the first digit or resin is '0' and no subsequent digits are dialed within any time (eg 3 seconds), the local attendant call is taken and the SEND code is initialized.

An emergency or information call is taken if the first digit is '0' or '1' i.e. the last two digits followed by three digits is '1' or only three digits are dialed and the second two digits are one. And the SEND code is initialized.

If 1 or 0 is dialed for the first time, it means that the long distance is dialed, including the operator assisting long distance calls such as credit card calls.

In such a case, 7 or more dirts will be allowed before the SEND code is transmitted. If 1 or 0 is dialed initially, and in addition, the third digit is 1 or 0, a total of 11 digits are allowed before the output of the long distance calling area is taken and the SEND code is sent.

On the other hand, if international dialing is performed, the start of the international dialing becomes 011. In that case, the SEND code is generated when three second gaps occur after the digit is dialed. A certain number of digits cannot be taken on the international dial and timing operation is expected.

This assumption is an example of a U.S. telephone system as described above. The present invention determines if a low signal is provided as an input to the gate 90 to initialize the SEND code if the conditions described above are possible. The logic can be designed depending on the network the particular phone in use. The decision to trigger the SEND code in this embodiment is made by the hard-wire serial gate and the flip-flop described herein. It is appreciated by those skilled in the art that systems based on microprocessors can be used where logical decisions are made in software.

The above-described decision is executed as follows. When a key or button on the telephone is released after being pressed, the DV inverter output 53 proceeds from the high to the low state of release. The high to low transition in this inverter 53 is provided as an input to the enable pin of the counter 111 (FIG. 3C). Counter 111 proceeds with each key release and the 4-wire output of counter 111 is provided as input to a binary to decimal converter or decoder 113. The decimal converter 113 provides a discrete output each time the counter 111 counts. The counter 111 counts each time the digit is dialed without the counter 111 being disabled or reset in the manner described.

A second decimal digit converter or decoder 115 is provided to receive four inputs from the buffer 65. Decoder 115 decodes the binary output provided to buffer 65 to give the decimal value of each digit as if dialed.

The output of decoder 113 and decoder 115 are provided in series with gates 117A-E. The NOR gate 117A combines the first number or digit (which is the '0' output of the decoder 113) with the digit value 1 of the decoder 115 along with the digit (number of coefficients according to the release of each key). So the output of gate 117A goes high and only the first digit dialed is one.

Similarly, gates B-E are decoded as follows. If the first digit is '0', the gate 117B will go high; If the dialed second digit is '1' the gate 117C will be high. If the dialed third digit is '1', the gate 117D will go high. If the dialed second digit is '0', gate 117E will go high.

출력은 로우로 진행한다. 래치 119로부터의 이 로우출력은 NOR게이트 (121)의 입력으로 제공된다. 게이트(121)의 다른 입력은 3개의 제 2출력이 타이머(39)로부터 온다.If the dialed first digit causing the output of the gate 117B goes high is '0', the latch 119 is set. So that the latch 119

The output goes low. This low output from latch 119 is provided to the input of NOR gate 121. The other input of gate 121 is three second outputs from timer 39.

Thus, when the timer 39 reaches the count of 3 seconds after the key is pressed, the timer 39 provides a low signal to the input of the gate 121. Thus, gate 121 will have both a low input and a high output provided from gate 121 which is an input of NOR gate 123. Thus, the output of the gate 123 goes low and is provided to the input of the gate 90, which in turn causes the delay one short 91 to trigger the SEND one short 93. So the SEND code is provided on the data line.

If the first digit is reflected by the high output of the gates 117A or 117B to be dialed, the counter 111 and the decimal decoder 113 are not preceded because they are reset to 1 or 0.

출력은 계수기(111)를 리세트하기 위해 게이트(129,131)에 하이로 진행한다. 그래서 제 1디지트는 계수되지 않는다. 예를들어 다이얼(0-991,1-911)은 어떠한 접두없이 다이얼(911)과 같이 되기 위한 디코더 (113,115)의 출력의 결과이다.In other words, if the high output of the gates 117A, 117B is provided through the NOR gate 125, the latch 127 is set and

The output goes high to gates 129 and 131 to reset the counter 111. So the first digit is not counted. For example, dials 0-991 and 1-911 are the result of the output of decoders 113 and 115 to become like dial 911 without any prefix.

출력은 NOR게이트(139)의 입력으로 제공된다. 게이트(139)의 출력은 게이트(123)의 입력으로 제공된다.If the dialed second digit determined by the decoders 113 and 115 is 1 or 0 (ie ignoring leading 1 or 0 described above), the output of the gate 117C or 117E will go high. This output is provided to an OR gate 133 which is an output for setting the latch 135. The Q output of the latch 135 is provided to the NOR gate 38. If the second digit is 1, so that the gate 117C output goes high and the latch 137 is set and

The output is provided to the input of the NOR gate 139. The output of the gate 139 is provided to the input of the gate 123.

출력이 로우로 진행하는 원인이 된다. 래치(141)의

는 게이트(139)의 입력으로 제공된다.Similarly if the third digit is 1, so the output of gate 117D goes high and latch 141 is set to

This causes the output to go low. Of the latch 141

Is provided at the input of the gate 139.

출력이 로우로 진행하는 원인이 되고 제 3디지트 다음의 키가 해제될 때 즉 디지트 디코드(113)단자(4)가 로우로 진행하고, 게이트(139)출력은 하이로 진행하고, 게이트(123)는 로우로 진행하며 SEND부호는 이전에 기술한 방식으로 발생된다.Thus, if the second and third digits are 1, the latches 137,141

When the output causes the output to go low and the key after the third digit is released, that is, the digit decode 113 terminal 4 goes low, the gate 139 output goes high, and the gate 123 Proceeds low and the SEND code is generated in the manner previously described.

If the SEND code is not fulfilled after the third digit, the coefficient of the digit decoder 113 continues to advance until the coefficient of seven is reached. With a coefficient of 7, the output of decoder 113 of pin 8 goes low and the low signal is provided to the input of gate 138.

출력이다. 그래서 만약 래치(135)가 제 2디지트(영역부호를 표시하는)에 1 또는 0을 감지함에 의해 세트되지 않으면 게이트(138)의 출력은 하이로 진행한다. 이 하이출력은 게이트(141)의 입력으로 제공되며 게이트(143)에 차례로 연결된다. 게이트(38)의 출력일 하이로 진행할 때 게이트(141)의 출력은 로우로 진행하여 게이트(143)의 입력으로써 제공된다. 사용자 001(국제 다이얼링)이 다이얼되지 않으면, 게이트(143)의 다른 입력핀은 역시 로우로 된다.The other input of the gate 138 is the latch 135, as mentioned above.

Output. So if the latch 135 is not set by detecting 1 or 0 in the second digit (which indicates the area code), the output of the gate 138 goes high. This high output is provided as an input to gate 141 and is in turn connected to gate 143. When the output of gate 38 goes high, the output of gate 141 goes low and is provided as an input of gate 143. If user 001 (international dialing) is not dialed, the other input pin of gate 143 goes low as well.

Thus, the output of the gate 13 goes high to trigger the SEND code transmitted via the gate 123.

On the other hand, if the latch 135 is set by 1 or 0 in the second digit, the coefficient advances until it becomes a coefficient of 10 from the digit decoder 113. This provides a low output from 10 positions of the digit decoder 113 provided as an input of the gate 145.

In this case, the gate 137 prohibits SEND generation on the seventh digit. Thus, the output from the gate 145 goes high and the output of the gate 141 goes low. If 001 is not dialed, the output of gate 143 goes high and in turn causes the output of gate 123 to go low so that the SEND code is passed. This takes care of the output of the long distance call area.

Turning to the next international dialing, this starts with the digital value 011. These digits are counted by counter 147 and receive their input from gates 149 and 151. Counter 147 counts the number of times that are reset by 1 or 0 in the first digit at which digit counter 111 is counted.

The three reset coefficients give a high output to the third counter of the counter 147 which provides a high input to the gates 153 and 143. The high input provided to the gate 143 prevents SEND from occurring on the seventh or tenth digit coefficient. The high input of gate 153 causes gate 153 output to go low. The low input of the gate 153 is provided as an input to the gate 155, and the other input is connected to the timer 39, which is three second outputs. So if 011 is dialed and three second passes with no more digits are dialed, the output of gate 155 goes high and is provided to the input of gate 123. So the gate 123 output goes low and the SEND signal is generated as previously described.

Now consider how the system works to receive the next call. Conventional transceivers, such as those used for cell radio, provide a signal such as an alarm signal to indicate the next call. In the present invention, an interface system is used to convert this next alarm signal to provide ringing of the diverter handset. This is done in the following way.

)에 열려진다.When the telephone is in the hook state, the current sensing relay 11 is connected to the input pin of the converter circuit 13 (

Is opened.

This causes the off hook output of the buffer 15 to be low causing the transistor 17 to not operate and the relay 19 to remain open. So when the phone rings in the manner described, the ring voltage is disconnected from the SIG IN input of the converter 13.

Since the transistor 17 is not turned on (i.e., the collector is high), the transistor 27 does not operate and the transceiver IGN reaching the terminals J1-J3 is disconnected from the 12V power supply. This allows the alarm signal from the transceiver to act.

The alarm line (terminal J1-6) is connected to the alarm latch 157 via the buffer 159 and the inverter 161. In the telephone used previously, the alarm latch 157 is reset (at gate 157A) by the output from the one short 93. This provides a high output from the gate 157B.

The output of alarm latch 157 is coupled to gate 163. The output of the gate 163 is coupled with a ring control terminal (terminal J1, pin 4). The ring control terminal is connected to the ring power supply circuit in the manner described. In the alarm, the next signal (terminal J1, pin 3) grounds the line (ie low) and this low signal passes through buffer 159 to gate 161 to provide a high output therefrom. This output sets latch 157 and the output goes low, which is provided as an input to gate 163. The other input of gate 163 is also low because the phone is on the hook and there is no loop current.

That is, the contact of the relay 11 is open and the line connected to the input of the buffer 165 goes high due to the internal pullup in the transformer 13. Thus, the input of the gate 163 via the gates 167, 169, 171 goes low. Thus, the output of the gate 163 goes high and is provided to the ring control terminal (terminal J1, pin 4).

When the output of the gate 163 is in the high state, the 20 Hz multivibrator 173 is enabled to generate a 20 Hz square wave at the output terminal 175. The elemental clocks 55 and 57 drive two JK flip-flops 177 to provide two and four second square waves, respectively.

These square waves are combined through the OR gate 179 to provide rectangular waves in the form of 1 second and 3 second off. This waveform is provided to the NAND gate 181.

Thus, the output of the gate 181 is a 20 Hz square wave, and 1 second on and 3 seconds off, respectively. This is converted by the signal inverter 183 and drives transistors 185 and 187 to cut 150 volt DC and is supplied through a 2200Ω resistor 189. The 150 volt DC is connected by a line through terminal J1, pin 7 and to the ring power board of FIG.

In FIG. 4, the ring power board supplies 150 volts via a transformer coupled to a 12 volt power source (preferably, 12 volt DC is provided by an AC / DC converter that converts 120 volt AC to 12 volt DC). A 12 volt DC backup power supply is provided to maintain the operating voltage during a power failure). 150DC is provided by a ring control output signal coming from gate 163 and provided as an input (terminal J1, pin 4 in FIG. 4) that turns on transistor 191, which in turn activates relay 193 to drive terminal J1, pin 7 12 volts are switched on to the 150 volt DC transistor converter circuit 195 to provide 150 volts.

The collector output of transistor 187 is coupled to the telephone circuit through capacitor 197 to provide a 150 volt AC 20 Hz ring voltage to the telephone.

That is, the output of the collector 187 through the condenser 197 is provided across the ring and tip terminals J1, pins 1 and 2 via the coil 21, the current sensing relay 11 and the coil 23. .

핀을 닫히게 한다.Along with the telephone ringing, the off-hook causes the current sensing relay 11 to ground the transducer 13.

Make the pin close.

This ground, or low signal, is provided as an input to the buffer 165 to provide a high input to the gate 163 through gates 167, 169, 171. Thus, the output of the gate 163, which is the ring control line, goes low (with capacitor 197), the gates 167 and 169 cause the pulsation of the current sensing relay 11 due to the ring current while the telephone is ringing and holding the telephone. To disable ring control). Off-hook while ring control is high causes a two-high input to gate 199 (FIG. 3a) which then goes low.

This low pulse is supplied as an input to gate 89, causing its output to be high. This ignites the delay one short 91, as in the above manner, which in turn ignites the SEND element 93, thereby igniting the AKR one short 79. Thus, the SEND code signal is supplied to the data line and supplied to the transceiver to complete the connection from the transceiver to the telephone central office. At the same time, ignition of the SEND one short 93 resets the alarm latch 157 as described above. Therefore, picking up the handset while the phone is ringing disables the ringing and supplies the transceiver with a cord to connect to the telephone central office.

The END code followed by the AKR code with the call complete and the phone hanged up (on hook) is supplied to the transceiver as described above.

If the telephone does not answer while it is ringing, it will continue to ring until the caller releases the telephone. At this time the bell of the telephone stops. This is done in the following way.

Conventional performance transceiver draws about 3 Amp of current when a call is received (and an alarm signal is generated). When the caller releases the phone, the transceiver current drops to about 1 amp. This current difference is detected and used to control the ringing of the phone.

In particular, the withdrawal current is supplied by the transceiver to the power supply board (FIG. 4) through the terminals p105 and (pin 12). A resistor 201 of 0.03Ω detects a current and the output is supplied through a current sensing terminal J1-5. This sense current is supplied as an input to DC amplifier 203 (FIG. 3D) and its output is supplied as an input to comparator 205. The initiated voltage amplified by the amplifier 203 is applied to the comparator 205 to generate a high output for small currents and a low output for high currents. When the current drops from high to low, the capacitor 207 is connected to the + pulse when the current drops to reset the alarm latch 157.

In the adapter board circuit (FIG. 5), parallel digital data or digits representing numbers are supplied to the data lines D0-D3 as inputs to the shift register 75. Data is output from the shift register 75 as a serial data stream on the data line 77 for storage temporarily until the SEND code is supplied to the transceiver as described above. This is driven in the following manner.

The inputs of the data lines D0-D3 are supplied to the E, D, C, and B terminals of the shift register 75. Inputs G, H, A, and F are tied in predetermined high and low coupling as shown in FIG.

These eight inputs are output via line 77.

출력이 로우로 된 후 1msec동안 하이로 되어 출력핀은 1msec동안 하이를 유지한다. 지연회로(222)의 출력핀의 하이는 래치회로(224)를 리세트시키며 이는 래치(224)의 Q출력이 로우가 되게하며 이는 방향성 제어선(DCL) (226)을 로우로 설정한다. 또한 래치(224)의 로우 Q출력은 계수기(228)의 리세트(RES)를 금지시킨다.When the data strobe DS pulse is supplied from the terminal P3 (pin 11), that is, when the data strobe line goes high, the high pulse resets the latch circuit 220. The Q output of latch 220 then goes low and this low output is fed to the S / L input of shift register 75 to cause the shift register to be rolled from line D0-D3 to the data line. The-edge of the Q output is supplied to the input pin of the delay circuit 222. The delay circuit 222 is composed of a series of binary short circuits. Delay circuit output pin of latch 220

After the output goes low, it goes high for 1msec and the output pin remains high for 1msec. The high of the output pin of the delay circuit 222 resets the latch circuit 224, which causes the Q output of the latch 224 to be low, which sets the directional control line (DCL) 226 to low. The low Q output of latch 224 also prohibits reset RES of counter 228.

펄스는 시프트 레지스터(75)의 CK핀에 공급되어 시프트 레지스터를 클록시키며 래치(220)에 공급되어 래치(220)를 세트시킨다. 래치(220)의 Q출력은 하이로되어 있는 시프트 레지스터(75)의 S/L핀에 공급된다.The low output of the DCL line drives gate 230 (FIG. 3b) via terminal J3-P3 (pin 14). This provides a line of digital serial data from the shift register 75 to the data line of the transceiver (terminal J2, pin 5). While the DCL line 226 is low, the transceiver (not shown) responds to the clock pulse of the HSCK line (this is the normal operating characteristic of the NEC transceiver). That is, the clock pulse is supplied from the transceiver to the terminals J3, (pin 15) and the terminals P3, (pin, 15) via the terminal J2 (pin 6) (FIG. 3B). Similarly, the HSCK pulse is supplied to inverter 232 (Fig. 3b) and this inversion pulse is supplied to terminal J3 (pin 6) and then to terminal P3 (pin 6) (fig. 5). . this

The pulse is supplied to the CK pin of the shift register 75 to clock the shift register and to the latch 220 to set the latch 220. The Q output of the latch 220 is supplied to the S / L pin of the shift register 75 which is high.

Data is output from the shift register 75 to the line 77. This data movement continues until counter 228 counts eight pulses. At this time, the output of Q ₄ of the counter 228 is made high and the latch 224 is set to make the DCL line 226 high. This sequence is repeated for each 8-bit data weed.

In the foregoing description, specific embodiments of the present invention have been disclosed. However, it is to be understood that this description has been given for the purpose of illustration only and that modifications and variations can be made without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (31)

For combining the radio transceiver 3 and the telephony communication apparatus 1 used in the telephony communication system 300 capable of radio communication with the master cell switching center 302 which is part of the telephone network. A telephone interface system 314; Telephone coupling means (7) operatively coupled with the telephony type device (1) to provide a two-way communication link to the telephone; Transceiver coupling means (5) operatively coupled with the radio transceiver (3) to provide a bidirectional communication link to the radio transceiver; Operatively coupled between the telephone coupling means 7 and the transceiver coupling means 5 to receive a group's touch tone or rotary dial telephone number from the telephone coupling means 7 and convert the group telephone number into digital data. Telephone number digital conversion means (9) for providing said digital data to said transceiver coupling means (5); Determination means (111, 113, 115) coupled to the telephone number digital conversion means (9) for determining the final number of the group telephone number provided to the transceiver coupling means, coupled to the determination means (111, 113, 115) and transmitted to the transceiver coupling means (5). Transmission signal means (91, 93, 95) for providing a signal; Call detection means (157, 159, 161) coupled with the transceiver coupling means for detecting an incoming call signal provided at (5); Off-hook detection means (11) operatively coupled to the telephone coupling means (5) for detecting an off-hook signal provided to the telephone coupling means; An audio channel (45, 209, 47, 213) operatively coupled with the telephone coupling means and the transceiver coupling means and providing a two-way audio signal path between the telephone coupling means and the transceiver coupling means; And telephone simulation means coupled to the telephone coupling means for providing an audio frequency ring tone (173) and a dial tone signal (43). The telephone number digital converting means (9) according to claim 1, characterized in that the telephone number digital converting means (9) converts each number of the group number into a binary coded parallel output (13) and converts the binary coded output into a serial digital data stream to receive a transceiver (3). And a parallel-to-serial conversion means (75) for providing a serial data stream to the transceiver coupling means (5) for storage. The method of claim 1, wherein the determining means (111) comprises means (117A, 117B) for determining if the numerical value of the predetermined number of the group number is the value '1' or '0'. Telephone interface system. 4. The telephone interface system according to claim 3, wherein said determining means (111) comprises means (39) for determining an elapsed time after receiving a number. 2. The apparatus according to claim 1, wherein said determining means (111) comprises a decimal decoder (113), clock means (39) for advancing the decimal decoder (113) when receiving a number from said telephone number digital conversion means, And decoding means (115) for decoding the numerical value, whereby the numerical value of the predetermined number is checked to see if the value is '1' or '0'. The telephone interface system according to claim 1, wherein said telephone simulation means (43) provides a continuous audio dial tone frequency signal in response to an off-hook signal of said off-hook determination (11) means. The telephone interface system according to claim 1, wherein said telephone simulation means (173) provides a periodic audio ring frequency signal in response to a next call signal of said call detection means (157,159,161). 2. The audio channel means (45, 209, 47, 213) according to claim 1, wherein the two-wire channel means connected to the telephone coupling means (7), four-wire channel means connected to the transceiver coupling means (5), and the two-wire connection. And channel coupling means for coupling two separate audio input / output channels of said four-wire connection means to a single audio input / output channel of the means. An interface system for coupling a standard touchtone / rotary dial telephony device (1) to a cellular radio transceiver (3); Telephone number digital conversion means (9) operatively coupled to the telephony type device (1) to convert group telephone numbers into digital data and to provide them to the transceiver (3); Determination means (111, 113, 115) operatively coupled with the telephone number digital conversion means (9) to automatically determine the final number of the group telephone number; Transmission signal means (91, 93, 95) connected to said determination means for transmitting a predetermined transmission code signal to the transceiver (3) in response to the determination means for determining the final number; Call detection means (157, 159, 161) for detecting an incoming call from the transceiver; And ring frequency generating means (173) operatively coupled to the telephone to respond to a next call to supply a periodic audio ring through frequency signal to the telephone. Furthermore, hangup detection means (11, 13) operatively coupled to the telephone to detect a hangup state from the telephone, and operatively coupled to the end signal means to terminate the predetermined time to the transceiver in response to the detection of the hangup signal. And a termination signal transmitting means (97,99) for transmitting the code signal. 10. The telephone interface system according to claim 9, wherein said telephone number digital converting means (9) comprises means (79) for transmitting a predetermined coded signal to a transceiver upon completion of each number of group numbers. Connected to a master cell switching center 302, which in turn is connected to a local telecommunication system 300, and having at least one remote radio station 304, which provides a wireless communication link to a base station transceiver. What is claimed is: 1. A cell radio / telephone communication system; Telephony communication apparatus (1): Cell radio transceiver (3) installed in a fixed place; And interface means (5, 7, and 9) operatively coupled to the telephone (1) and the transceiver (3) to interface the telephone to the transceiver. The interface means supplies a DC voltage to the transceiver. Power supply means 7 for carrying out; Telephone number digital changing means (9) operatively coupled to the telephone communication type device (1) for converting a touch tone dial / pulse dial telephone number from the telephone into digital data for temporary storage in the transceiver; Transmission means (91,93,95) operatively coupled to the transceiver (3) to enable the transceiver to transmit digital data; And telephone simulation means operatively coupled to the telephone communication device to supply ring-type (173) and dial-tone (43) frequency signals to a telephone. 13. A communication system according to claim 12, wherein the cellular radio transceiver (3) comprises a directional antenna directed to a remote radio station transceiver. A telephone interface system for combining a radio transceiver (3) and a telephony device (1) used in a telephony system capable of radio communication with a telephone network, the system comprising: operative with the telephony device and transceiver; Telephone number digital converting means (9) coupled to each other to convert the group telephone number into digital data and to provide the digital data to the transceiver for storage of the digital data; Transmission signal means (91, 93, 95) operatively coupled to the transceiver (3) to provide a transmission signal to the transceiver so that the transceiver can transmit digital data stored therein; Determining means (111, 113, 115) operatively combined with the telephone number digital converting means for automatically determining when a transmission signal should be supplied to a transceiver; And call detection means (157, 159, 161) operatively coupled to the transceiver (3) for detecting the next call from the transceiver. The transceiver 3 may supply a touchtone / rotary dial telephone signal to a radio transceiver 3 used in a telephony system 300 capable of radio communication with a remote radio transmitter-receiver system 302 that is part of a telephone network. A method of interfacing a telephony type device 1 capable of interfacing a touch tone / rotary dial type telephone signal to enable at least one-way communication between a transceiver 3 and a telephony type device 1. Coupling the transceiver 3 to a telephony type device 1 to be supplied; The combining step includes changing each dialed number of the telephony type device 1 into digital data; The combining step further includes automatically determining at least the final dial number of the dialed telephone number in the telephony type device; And transmitting each digitally converted number formed by the changing step to a transceiver for subsequent transmission. 16. The method according to claim 15, wherein the step of combining comprises providing two-way communication between the transceiver (3) and the telephony device (1). 16. The method according to claim 15, wherein said transmitting step comprises storing digital data in a transceiver memory (3). 16. The method of claim 15, wherein said combining step further comprises transmitting each digitally converted number formed by said converting step, wherein said transmitting step is performed in response to said automatic determination step and thereby telephony type. The transceiver (3) is operable to transmit digital data when dialing the last or only one number to the apparatus (1). 19. The method of claim 18, wherein the automatic determination step comprises automatically determining a dialing of a single number representing a telephone number to be called, and a single number that is not an available number to be called so that the transmitting step is performed when number 0 is dialed. And automatically determining another single digit telephone number such that said transmitting step is not performed for at least one. 16. The method of claim 15, wherein the step of automatically determining includes automatically distinguishing between dialing single and multi digit telephone numbers. 21. The method of claim 20, further comprising the step of automatically distinguishing between dialing of a local telephone number and dialing of a long distance telephone number. 21. The method of claim 20, wherein the step of distinguishing automatically further comprises the step of distinguishing between dialing of long distance telephone number and dialing of overseas telephone number. 21. The method of claim 20, wherein the step of automatically distinguishing further comprises distinguishing dialing of a 7 digit telephone number by a dialer of a 3 digit telephone number. The transceiver 3 can supply a touch tone / rotary dial telephone number to the radio transceiver 3 used in the telephone communication system 300 capable of wireless communication with the master cell switching center 302 which is part of the telephone network. A method of interfacing a telephony device (1), the method comprising: coupling a telephony device to a coupling means to provide a bidirectional communication link to the telephony device; Coupling the transceiver 3 to the coupling means 5 to provide a bidirectional communication link to the wireless transceiver 3; A telephone number digital changing means is provided for receiving a group of touch tone or rotary dial type telephone numbers from the telephone coupling means (7), converting the telephone numbers of the group into digital data, and converting the digital data into a transceiver coupling means; Supplying to (5); Determining a final digit of a telephone number of a group provided in the transceiver coupling means (5): providing a transmission signal to the transceiver (3); Detecting an incoming call signal provided in the transceiver coupling means (5); Detecting an off-hook signal provided in the telephone coupling means 7; Providing a two-way audio signal path between the transceiver coupling means (5) to the telephone coupling means (7); And providing therein an audio frequency ring tone and a dial tone signal therein. A method of incorporating a telephony device (1) capable of supplying a touch tone / rotary dial telephone signal to a cellular radio transceiver (3), comprising the steps of: (a) converting a telephone number of a group into digital data to convert this digital data; Providing to the transceiver 3; (b) automatically determining the last digit dialed in the telephone number; (c) transmitting a predetermined transmission code signal to the transceiver 3 in response to step (b); (d) detecting an incoming call from the transceiver 3; And (e) generating a ring frequency to provide a periodic audio ring tone frequency signal to the telephony device (1). 26. The method of claim 25, further comprising detecting a hangup state from the telephony type device 1 and transmitting a predetermined end load signal to the transceiver 3 in response to the detection of the hangup signal. . 26. The method of claim 25, wherein step (a) comprises transmitting a predetermined code signal to a transceiver upon completion of each digit of a number in the group. Incorporating a telephony type device (1) capable of providing a touchtone / rotary dial telephone signal to a radio transceiver (3) used in a telephony system (300) in which a transceiver (3) can wirelessly communicate in a telephone network. A method for causing a method, the method comprising: converting a telephone number of a group into digital data and supplying the digital data to a transceiver (3); Supplying a transmission signal to the transceiver 3 so that the transceiver 3 can transmit and receive digital data; Automatically determining when a transmission signal should be supplied to the transceiver 3; And detecting a Dore call from the transceiver (3). A telephony device (1) for providing a touchtone / rotary dial telephone signal to a cellular radio transceiver (3) used in a telephony system and capable of wireless communication with a master cellular switching center 302 that is part of a telephone network. A system for interfacing a telephone, comprising: telephone coupling means (7) operatively coupled with a telephony type device (1) to provide a two-way communication link to a telephony device (1); Transceiver coupling means (5) operatively coupled with the cellular radio transceiver (3) to provide a two-way communication link to the transceiver; Operatively coupled between the telephone coupling means 7 and the transceiver coupling means 5 to receive a group of touch tone or rotary dial telephone numbers from the telephone coupling means 7 and convert this group switching number into digital data. Telephone number digital conversion means (9) for converting and providing said digital data to said transceiver coupling means (5); Determination means (111, 113, 115) coupled to the telephone number digital conversion means (9) for automatically determining the final number theory of the group telephone number provided in the transceiver coupling means (5); And transmission signal means (91,93,95) coupled to said determining means for providing a transmission signal to a transceiver coupling means. Cell radio / equipped with at least one remote radio station 304 transmitter-receiver coupled to a master cell switching center 302 alternately connected to the telephony system 300 and providing a radio communication link for base station transmission and reception. A telephony communication system comprising: a telephony type device 1; A cellular radio transceiver 3 installed at a fixed location; Interface means (5,7,9) operatively coupled between a telephone and a transceiver, the power supply means for interfacing the telephone (1) to the transceiver (3) and supplying a DC voltage to the transceiver; Telephone number digital conversion means (9) operatively coupled to a telephone and interface means for converting a touch-tone / pulse dial telephone number from the telephone into digital data for at least temporary storage in the transceiver (3); Means (111,113, 115) coupled to the telephone call digital converting means (9) to operatively determine a final dial number of a telephone number, and operatively coupled to the determining means to cause the transceiver to transmit digital data; Cellular radio / telephony system, characterized in that it comprises means (91,93,95). In the telephone interface system 314, in which the cellular transceiver 3 combines the cellular radio transceiver 3 and the communication device 1 used in the telephony system 300 capable of wireless communication with the telephone network. Telephone number digital conversion means (9) operatively coupled with the communication device (1) and the transceiver (3) to convert a group of telephone numbers into digital data and to provide the digital data to the transceiver for at least temporary storage; Transmission signal means (91, 73, 95) operatively coupled to the telephone number digital conversion means and the transceiver for providing a transmission signal to the transceiver so that the transceiver can transmit the stored digital data; And determining means (111, 113, 115) operatively coupled to the telephone number digital conversion means and the transmission signal means to automatically determine when a transmission signal is provided to the transceiver.

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