KR100369320B1 - Analog fax interface control method of wll terminal equipped analog fax board and wll terminal - Google Patents

Abstract

The present invention relates to a wireless subscriber network terminal device having an analog fax board and a method for controlling the analog fax interface thereof. SUMMARY OF THE INVENTION The present invention provides an analog G3 fax board for an analog G3 fax interface in a CDMA WLL terminal device, and IS-99, which is an Async. Data Communication standard in a CDMA WLL terminal device. By controlling the analog G3 fax board according to the method, the analog G3 fax call is recognized as a PC fax call of the IS-99 method, thereby providing a more reliable analog G3 fax service. And its analog fax interface control method. SUMMARY OF THE INVENTION The present invention relates to a wireless subscriber network terminal device having an analog fax board, wherein the analog data transmitted from a general telephone and a local fax are matched and transmitted, and the analog data received from the analog G3 fax board is transmitted. Single line interface card (SLIC) to match and transmit to the regular telephone or local fax; A Dual Tone Multi Frequency (DTMF) receiver for receiving dial data input through the SLIC; An SRAM and a flash memory for storing program data necessary for operation of the analog G3 fax board and data generated during operation; An external Universal Asynchronous Receiver Transmitter (UART) that forms a serial data communication path between the Microwave Switching Matrix (MSM) and the analog G3 fax board when terminating a call during fax transmission / reception; A switch connected to the external UART and the UART in the analog G3 fax board to switch according to an on / off control signal of an MSM; A multiplexer that connects the MSM to an external UART or to a UART in an analog G3 fax board according to the MSM selection signal; Perform analog G3 fax service by converting analog data transmitted from local fax into digital data according to IS-99 method, and converting digital data received from MSM into analog data according to IS-99 method and sending it to local fax. Analog G3 Fax Board; An MSM of a Wireless Local Loop (WLL) terminal device for controlling the analog G3 fax interface operation of the analog G3 fax board; And an RF unit for converting the digital data transmitted from the MSM to a base station of the WLL system by processing a radio frequency (RF) signal, converting the RF signal received from the base station of the WLL system to be processed by the MSM, and transmitting the RF signal to the MSM. 4. Significant Use of the Invention The invention is used in CDMA WLL terminal equipment and the like.

Description

ANALOG FAX INTERFACE CONTROL METHOD OF WLL TERMINAL EQUIPPED ANALOG FAX BOARD AND WLL TERMINAL}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless local loop (WLL) terminal device having an analog fax board, and a method for controlling an analog fax interface thereof, and more particularly, to code division multiple access (CDMA). WLL terminal and analog fax including an analog G3 fax board provided inside the WLL terminal and having an analog fax board for controlling the analog G3 fax board according to IS-99 to provide an analog G3 fax service. It relates to an interface control method.

In general, the analog G3 fax standard in a CDMA network is the recently defined IS-707.A.7 standard, and in the case of a CDMA WLL terminal device, it must comply with the IS-707.A.7 standard.

However, the analog G3 fax standard of IS-707.A.7 is currently in an early stage of implementation in the system and thus cannot provide a complete analog G3 fax service.

In other words, since the target system that implements the IS-707.A.7 based fax function is incomplete in the world, the analog G3 fax service provided by the WLL terminal cannot be perfect and reliable. There was a problem that no.

The present invention has been proposed to solve the above problems, and includes an analog G3 fax board for an analog G3 fax interface in a CDMA WLL terminal device, and provides asynchronous data communication in the CDMA WLL terminal device. Analog FAX board that controls analog G3 FAX board according to IS-99 standard and recognizes analog G3 FAX call as IS-99 PC FAX call, providing more reliable analog G3 FAX service. It is an object of the present invention to provide a WLL terminal apparatus and a method for controlling an analog fax interface thereof.

1 is a block diagram of an embodiment of a wireless subscriber network (WLL) terminal device having an analog fax board according to the present invention.

2 is a detailed flowchart illustrating an embodiment of a fax call transmission process when performing an analog fax interface control method in a WLL terminal according to the present invention.

3 is a detailed flowchart illustrating an embodiment of a fax call reception process when performing an analog fax interface control method in a WLL terminal according to the present invention.

4 and 5 are detailed flowcharts illustrating an example of a call termination process when a fax transmission is performed when an analog fax interface control method is performed in a WLL terminal apparatus according to the present invention.

6 and 7 are detailed flowcharts illustrating an embodiment of a call termination process when receiving a fax when performing an analog fax interface control method in a WLL terminal according to the present invention.

8 is a detailed flowchart illustrating a call termination process of an analog G3 fax board when performing an analog fax interface control method in a WLL terminal according to the present invention.

* Explanation of symbols for main parts of the drawings

1: Regular Phone 2: Local Fax

3: SLIC 4: DTMF Receiver

5: SRAM 6: Flash Memory

7: external UART 8: switch

9: mux 10: analog G3 fax board

11: analog fax 12: AFE modem

13: DTE 14: UART

20: MSM 30: RF unit

The present invention for achieving the above object, in a wireless subscriber network terminal device having an analog fax board, matching and transmitting analog data transmitted from a general telephone and a local fax, and transmits the analog data received from the analog G3 fax board Single line interface card (SLIC) to match and transmit to the regular telephone or local fax; A Dual Tone Multi Frequency (DTMF) receiver for receiving dial data input through the SLIC; An SRAM and a flash memory for storing program data necessary for operation of the analog G3 fax board and data generated during operation; An external Universal Asynchronous Receiver Transmitter (UART) that forms a serial data communication path between the Microwave Switching Matrix (MSM) and the analog G3 fax board when terminating a call during fax transmission / reception; A switch connected to the external UART and the UART in the analog G3 fax board to switch according to an on / off control signal of an MSM; A multiplexer that connects the MSM to an external UART or to a UART in an analog G3 fax board according to the MSM selection signal; Perform analog G3 fax service by converting analog data transmitted from local fax into digital data according to IS-99 method, and converting digital data received from MSM into analog data according to IS-99 method and sending it to local fax. Analog G3 Fax Board; An MSM of a Wireless Local Loop (WLL) terminal device for controlling the analog G3 fax interface operation of the analog G3 fax board; And an RF unit for converting the digital data transmitted from the MSM to a base station of the WLL system by processing a radio frequency (RF) signal, converting the RF signal received from the base station of the WLL system to be processed by the MSM, and transmitting the RF signal to the MSM. Characterized in that made

In addition, the present invention provides a method for controlling an analog fax interface applied to a wireless subscriber network terminal device, wherein a single line interface card (SLIC) detects a hook state of a normal telephone and a local fax, and detects off-hooks. Dial data receiving step of receiving dial data through a Dual Tone Multi Frequency (DTMF) receiver when Off Hook is detected; In case of analog G3 fax call as a result of analyzing dial data received in the dial data receiving step, the analog G3 fax board is turned on in the microwave switching matrix (MSM) and the analog G3 fax board is via UART (Universal Asynchronous Receiver Transmitter). A communication path forming step of forming a serial data communication path between the G3 Fax Board and the MSM; A call setup step of, after performing the communication path forming step, an analog G3 fax board receives and stores analog data of an image transmitted from a local fax, attempts to make a call according to an IS-99 scheme; When the call is set up in the call setup step, the analog data of the image stored in the call setup step is converted to digital data according to the IS-99 method in the analog front end (AFE) modem of the analog G3 fax board. A data conversion and transmission step of transmitting digital data to a data terminal equipment (DTE); The DTE recognizes and processes the digital data transmitted in the data conversion and transmission step as a PC fax call according to the IS-99 method, and then transmits the data to the MSM through the UART and the WLL (Wireless Local Loop) through the RF (Radio Frequency) unit. An analog G3 fax transmission process comprising transmitting to a base station of the system; After setting the analog G3 fax receive mode on the MSM, turn on the analog G3 fax board as soon as it receives a call from the base station of the WLL system and establish a serial data communication path between the analog G3 fax board and the MSM through the UART. Forming a communication path; After performing the communication path forming step, the MSM transmits ring string data to the analog G3 fax board to report the incoming fax status, and if the incoming response string is transmitted from the analog G3 fax board, a call is established according to the IS-99 method. Setting step; A ring generating step of generating a ring to the local fax side by operating a ring drive of the local fax after operating the local fax in a reception mode when the call is set in the call setting step; After performing the ring generation step, when SLIC detects an off hook from a local fax, the MSM receives data from the RF unit and receives digitally processed image data through a multiplexer and a UART and transmits the data to a DTE in an analog G3 fax board. Transmitting step; And when the DTE recognizes the digital data transmitted in the data transmission step as a PC fax call according to the IS-99 scheme and transmits the digital data to the AFE modem of the analog G3 fax board, the AFE modem transmits the transmitted digital data according to the IS-99 scheme. After converting the analog data, characterized in that it comprises an analog G3 fax reception process consisting of a data transmission step of transmitting the converted analog data to the local fax through the SLIC.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration diagram of an embodiment of a wireless subscriber network (WLL) terminal device having an analog fax board according to the present invention. As shown in FIG. 1, the wireless subscriber network having an analog fax board according to the present invention is shown. (WLL) terminal equipment matches and transmits analog data transmitted from a general telephone (1) and a local fax (2) connected to the TEL1 and TEL2 ports, respectively, and transmits analog data received from an analog G3 fax board. A single line interface card (SLIC) 3 for matching and transmitting to the regular telephone 1 or local fax 2 through the TEL1 and TEL2 ports, and DTMF for receiving dial data input through the SLIC (3). (Dual Tone Multi Frequency) receiver (4), SRAM (5) and Flash Memory (6) for storing program data necessary for operation of analog G3 fax boards and data generated during operation Wow, fax External Universal Asynchronous Receiver Transmitter (UART) (7), which forms a serial data communication path between the Microwave Switching Matrix (MSM) and the analog G3 fax board when terminating a call when received, and the external UART (7) and analog G3 fax A switch 8 connected to a UART in the board and switching according to the on / off control signal of the MSM, and a mux connecting the MSM to the external UART 7 or to the UART in the analog G3 fax board according to the selection signal of the MSM. Multiplexer) (9) and analog data transmitted from the local fax machine (2) are converted into digital data according to the IS-99 method, and digital data received from the MSM is converted into analog data according to the IS-99 method, thereby converting the local fax. (2) an analog G3 fax board (10) for performing an analog G3 fax service in a WLL terminal device, and an analog G3 fax interface of the analog G3 fax board (10). Microwave Switching Matrix (MSM) 20 of the WLL terminal device for controlling the phase operation and digital data transmitted from the MSM 20 are processed by the RF signal and transmitted to the base station of the WLL system, and received from the base station of the WLL system. The RF unit 30 converts the RF signal to be processed by the MSM 20 and transmits the RF signal to the MSM 20.

At this time, the analog G3 fax board 10 converts the analog data transmitted from the local fax 2 through the SLIC (3) into digital data according to the IS-99 scheme, and converts the digital data received from the DTE to IS- Analog fax 11 having an analog front end (AFE) modem 12 for converting to analog data according to the 99 method and transmitting to local fax 2 via SLIC 3, and the analog fax 11 Data Terminal Equipment (DTE) 13 which recognizes and processes digital data transmitted from the AFE modem 12 and digital data received through the UART as IS-99 PC fax calls, and faxes for fax transmission / reception. It consists of a UART 14 that forms a serial data communication path between the MSM 20 and the analog G3 fax board 10 when making or receiving a call.

In the WLL terminal device having the analog fax board according to the present invention configured as described above, the telephone interface is designed as a dual port so that a general telephone 1 and a local fax 2 can be used without distinction. By connecting a single local fax (2), voice and fax transmission / reception are possible.

In addition, in the present invention, the concept of Auto Power On Reset (Auto Power On Reset) is introduced to control the power of the MSM 20. The power of the analog G3 FAX board 10 is usually turned off. Only when there is an event, the analog G3 fax board 10 can be turned on to provide a more reliable analog G3 fax service.Only in this case, the power is turned on and power is normally supplied. It turns off the current consumption even when using the backup battery (Back up Battery).

In addition, the handshaking between the analog G3 FAX board 10 and the MSM 20 is allocated by using three pins (DTR, REQFAX, and ACKMSM) in the UART 14 in hardware, and the rest is software. The board interface is simple because it communicates through string data.

Referring to Figures 2 to 8 the operation of the WLL terminal device having an analog fax board according to the present invention configured as described above is as follows.

In the present invention, the analog data of the T30 transmitted from the local fax (2) is converted into digital data of the T32 by the AFE modem 12 in the analog fax (11) of the analog G3 fax board (10) according to the IS-99 method and the DTE. And transmit the digital data of the T32 received from the DTE 13 to the analog data of the T30 according to the IS-99 method from the AFE modem 12 in the analog fax 11 of the analog G3 fax board 10. The local fax 2 receives the conversion.

As described above, the present invention provides a more reliable analog G3 fax service by recognizing analog G3 fax calls as IS-99 type PC fax calls when the WLL terminal device interfaces with analog G3 fax. You can do it.

That is, the process of transmitting an analog G3 fax is as follows.

SLIC (3) detects the hook status from the regular telephone (1) and the local fax (2) connected to the TEL1 and TEL2 ports, respectively, and reports the detection result to the MSM (20). Dial data is received via the DTMF receiver 4.

In the case of analyzing the dial data in the MSM 20, and the analog G3 fax call is turned on, the power of the analog G3 fax board 10 is turned on, and the UART 14 connects the analog G3 fax board 10 and the MSM 20 to each other. Form a serial data communication path.

Subsequently, when a serial data communication path is formed between the analog G3 fax board 10 and the MSM 20 through the UART 14 as described above, the local fax (via the SLIC 3) in the analog G3 fax board 10 is formed. After receiving and storing the analog data of the image transmitted in 2), the call is attempted according to the IS-99 method.

Then, when a call is established by attempting a call according to the IS-99 method, the analog data of the stored image is converted into the IS-99 by the AFE modem 12 in the analog fax 11 of the analog G3 fax board 10. After converting the digital data according to the scheme, the converted digital data is transmitted to the DTE 13.

Subsequently, the DTE 13 recognizes and processes the digital data transmitted from the analog fax 11 as a PC fax call according to the IS-99 method, and then passes the UART 14 and the mux 9 to the MSM 20. send.

Then, the MSM 20 transmits the processed data to a radio frequency (RF) unit 30 so that the RF unit 30 processes the processed data to an RF signal and transmits the processed data to a base station of the WLL system.

In contrast, the process of receiving an analog G3 fax is as follows.

Set the analog G3 fax receive mode to receive analog G3 faxes in the MSM 20, then turn on the analog G3 fax board 10 as soon as it receives an incoming call from the base station of the WLL system and turn on the UART (14). Through this, a serial data communication path is formed between the analog G3 fax board 10 and the MSM 20.

Subsequently, the MSM 20 transmits the ring string data to the analog G3 fax board 10 to report the fax reception status. Then, when the incoming response string is transmitted from the analog G3 fax board 10, the IS-99 scheme is transmitted. Set up the call accordingly.

Then, when the call setup is made as described above, the MSM 20 operates the local fax 2 in the reception mode, and then drives the ring drive of the local fax 2 to generate a ring to the local fax 2 side. .

Subsequently, when the SLIC 3 detects the off-hook which is in the reception completion state from the local fax 2, the MSM 20 receives the digitally processed image data received from the RF unit 30 and the mux 9 and the UART 14. Received through) and transmitted to the DTE (13) in the analog G3 fax board (10).

Thereafter, the DTE 13 recognizes the digital data transmitted through the UART 14 as a PC fax call according to the IS-99 method and sends the digital data to the AFE modem 12 in the analog fax 11 of the analog G3 fax board 10. When transmitting, the AFE modem 12 converts the transmitted digital data into analog data according to the IS-99 method, and then transmits the converted analog data to the local fax 2 through the SLIC 3.

Next, a processing process between the analog G3 FAX board 10 and the MSM 20 in the WLL terminal device according to the present invention will be described with reference to FIGS. 2 to 8.

2 is a view showing the flow of fax call origination when performing the analog fax interface control method in the WLL terminal according to the present invention. When the call origination, the MSM 20 detects an off-hook from the local fax 2 when the call originates. The ACKMSM pin of the UART 14 is asserted high to inform the analog G3 fax board 10 of the handset state of the fax (2), and the dial data is received and stored through the DTMF receiver (4). do.

After reception of the dial data, it is checked whether there is a digit prefix of "* 00" indicating an analog G3 fax call. If there is no prefix, normal voice call processing is performed, and the "* 00" digit prefix is checked. Since it is an analog G3 fax call, the MSM 20 turns on the analog G3 fax board 10 and establishes a serial data communication path through the UART 14 between the MSM 20 and the analog G3 fax board 10. do.

Then, the MSM 20 determines the wait completion state of the analog G3 fax board 10 through the DTR (Data Terminal Ready) pin of the UART 14, and then stores the digits previously received and stored through the DTMF receiver 4. Digit string data excluding the prefix is transmitted to the analog G3 fax board 10.

Then, the analog G3 fax board 10 receives a certain amount of image data to be transmitted from the local fax 2 until the buffer becomes full, and then executes an AT (Auto Turning) command defined in the IS-99 method. Attempt to call the MSM 20, and then emit an Origination Message in the air from the MSM 20 and receive a response signal from the base station to connect the "connect" string to the analog G3 fax board 10. Transmits and attaches a CD (Carriage Detect) pin, and then performs the same processing as the IS-99 method.

3 is a diagram illustrating a flow of incoming / outgoing calls when an analog fax interface control method is performed in a WLL terminal according to the present invention. First, the MSM 20 uses an analog G3 fax reception mode to receive an analog G3 fax call. Set it.

Subsequently, upon receiving the call reception message of the base station from the air, the MSM 20 turns on the analog G3 FAX board 10 and transmits the power through the UART 14 between the MSM 20 and the analog G3 FAX board 10. Form a serial data communication path.

Then, the MSM 20 determines the wait completion state of the analog G3 fax board 10 through the DTR pin of the UART 14, and then transmits the string data "RING" to the serial port to indicate the incoming fax status. Attach the Ring Indicator (RI) pin of (14).

When the "ATA (AT Attachment)" string is received from the analog G3 FAX board 10, the MSM 20 sets up a call to the air, that is, the base station, and bypasses the "connection" string transmitted from the system. Attach the CD pin.

Then, when the REQFAX pin goes low to operate the local fax 2 in the reception mode, the MSM 20 drives a ring drive to generate a ring toward the local fax 2.

Then, when the reception completion status of the local fax 2, i.e., the off hook, is detected by the corresponding ring signal, the handset status of the local fax 2 is asserted to the ACKMSM pin high and the analog G3 fax board ( 10), and from the next processing, image data is received according to the IS-99 method.

4 and 5 are diagrams illustrating a call termination flow during fax transmission when performing the analog fax interface control method in the WLL terminal apparatus according to the present invention. As shown, when receiving a call release message from the air, i.e., the base station, the MSM 20 initializes the serial data path through the external UART 7, and turns off the analog G3 fax board 10, Process the on-hook status of the local fax (2).

Here, when the call is terminated by the call release command during fax transmission, the call is released immediately to reduce the air occupancy time.

When the call is terminated by the local fax 2 during fax transmission, as shown in FIG. 5, even when the image data transmission of the local fax 2 is completed and the on-hook state is detected from the MSM 20, the analog G3 fax is transmitted. Since the board 10 is performing image data transmission, the handset state of the local fax 2 is deasserted to the analog G3 fax board 10 by deasserting the ACKMSM pin low, and then the analog G3 fax board 10 Wait for the DTR pin to deassert to determine the transmit completion status.

Then, when the DTR pin is disconnected, the transmission is completed. Therefore, the MSM 20 initializes the serial data path through the external UART 7, turns off the analog G3 FAX board 10, and then returns to the air, that is, the base station. Send a call release message.

6 and 7 are diagrams illustrating a call termination flow when receiving a fax when performing an analog fax interface control method in a WLL terminal according to the present invention. As shown, the MSM 20 receives a "NO CARRIER" string from the air, i.e., from the base station or from the system when receiving a fax, bypasses the string to the analog G3 fax board 10. And wait until the local fax 2 is in an on-hook state to determine whether all the data accumulated in the image data buffer in the analog G3 fax board 10 has been transferred to the local fax 2.

Then, when the on hook is detected, the MSM 20 initializes the serial data path through the external UART 7 and powers off the analog G3 fax board 10.

At this time, the processing method as shown in Fig. 6 is not normal processing but abnormally when the analog G3 FAX board 10 ends the call.

When the call is terminated by the local fax 2 when receiving a fax, as shown in FIG. 7, the on-hook is received when the fax is received due to the completion of image data reception of the local fax 2 or an abnormal operation of the local fax 2. When detected, the MSM 20 initializes the serial data path through the external UART 7, turns off the power of the analog G3 fax board 10, and transmits a call release message to the public, that is, the base station.

Here, when the call is terminated by the local fax (2) when receiving a fax, if a hook from the local fax (2) is detected, it is regarded as an abnormal state occurrence of the local fax (2), and further progress is meaningless. It reduces the air occupancy time by sending a call release message directly to the air, that is, the base station.

8 is a view illustrating a call termination flow of the analog G3 fax board 10 when the analog fax interface control method is performed in the WLL terminal device according to the present invention. The analog G3 fax board 10 transmits / receives image data. If the DTR pin is depressed, the MSM 20 initializes the serial data path through the external UART 7, powers off the analog G3 fax board 10, and sends a call release message to the air, that is, the base station. do.

Then, the analog G3 fax board 10 is in an idle state after the on-hook detection of the local fax 2. The present invention described above is not limited to the above-described embodiment and the accompanying drawings, It will be apparent to those skilled in the art that various substitutions, modifications, and changes can be made without departing from the spirit of the present invention.

As described above, the present invention includes an analog G3 fax board in the CDMA WLL terminal device, and controls the analog G3 fax board according to the IS-99 method in the CDMA WLL terminal device to issue an analog G3 fax call. By recognizing the PC fax call of the -99 method, it is possible to provide a more reliable analog G3 fax service.

In addition, the present invention has a merit that a voice interface and a fax transmission / reception are possible by connecting a single local fax by designing a dual-port telephone interface so that a general telephone and a local fax can be used without distinction.

In addition, the analog G3 fax board is usually turned off, and the analog G3 fax board is turned on only when there is a fax call event, thereby providing more reliable analog G3 fax service. The power is turned on and off normally, which reduces current consumption even when using a backup battery.

In addition, in the present invention, the handshaking between the analog G3 fax board and the MSM is performed by using three pins in the UART in hardware, and the rest of the software communicates through string data, so the board interface has a simple advantage.

Claims (12)

In the wireless subscriber network terminal device having an analog fax board, A single line interface card (SLIC) for matching and transmitting analog data transmitted from a general telephone and a local fax, and matching the analog data received from an analog G3 fax board and transmitting the same to the standard telephone or a local fax; A Dual Tone Multi Frequency (DTMF) receiver for receiving dial data input through the SLIC; An SRAM and a flash memory for storing program data necessary for operation of the analog G3 fax board and data generated during operation; An external Universal Asynchronous Receiver Transmitter (UART) that forms a serial data communication path between the Microwave Switching Matrix (MSM) and the analog G3 fax board when terminating a call during fax transmission / reception; A switch connected to the external UART and the UART in the analog G3 fax board to switch according to an on / off control signal of an MSM; A multiplexer that connects the MSM to an external UART or to a UART in an analog G3 fax board according to the MSM selection signal; Perform analog G3 fax service by converting analog data transmitted from local fax into digital data according to IS-99 method, and converting digital data received from MSM into analog data according to IS-99 method and sending it to local fax. Analog G3 Fax Board; An MSM of a Wireless Local Loop (WLL) terminal device for controlling the analog G3 fax interface operation of the analog G3 fax board; And RF unit for processing the digital data transmitted from the MSM RF (Radio Frequency) signal to the base station of the WLL system, and converts the RF signal received from the base station of the WLL system to be processed by the MSM to transmit to the MSM Wireless subscriber network terminal device having an analog fax board comprising a. The method of claim 1, The analog G3 fax board, AFE that converts analog data transmitted from the local fax into digital data according to the IS-99 method, and converts the digital data received from the data terminal equipment (DTE) into analog data according to the IS-99 method and transmits the analog data to the local fax. (Analog Front End) analog fax with modem; A DTE for recognizing and processing digital data transmitted from the AFE modem of the analog fax machine and digital data received through the UART as a PC fax call according to an IS-99 method; And UART that forms a serial data communication path between the MSM and the analog G3 fax board when sending or receiving a fax call for fax transmission / reception Wireless subscriber network terminal device having an analog fax board comprising a. The method of claim 1, Wireless subscriber network terminal equipped with analog fax board, which allows you to send and receive voice and fax by connecting 1 local fax by designing dual interface of telephone interface so that you can use regular phone and local fax without distinction. . The method of claim 1, The MSM normally powers off the analog G3 fax board, and power control operates to turn on the power of the analog G3 fax board only when there is a fax call event. One wireless subscriber network terminal device. In the analog fax interface control method applied to a wireless subscriber network terminal device, Single Line Interface Card (SLIC) detects the hook status of a regular telephone and a local fax, and when an off hook is detected as a result of detection, dial data is transmitted through a Dual Tone Multi Frequency (DTMF) receiver. Receiving dial data; In case of analog G3 fax call as a result of analyzing dial data received in the dial data receiving step, the analog G3 fax board is turned on in the microwave switching matrix (MSM) and the analog G3 fax board is via UART (Universal Asynchronous Receiver Transmitter). A communication path forming step of forming a serial data communication path between the G3 Fax Board and the MSM; A call setup step of, after performing the communication path forming step, an analog G3 fax board receives and stores analog data of an image transmitted from a local fax, attempts to make a call according to an IS-99 scheme; When the call is set up in the call setup step, the analog data of the image stored in the call setup step is converted to digital data according to the IS-99 method in the analog front end (AFE) modem of the analog G3 fax board. A data conversion and transmission step of transmitting digital data to a data terminal equipment (DTE); The DTE recognizes and processes the digital data transmitted in the data conversion and transmission step as a PC fax call according to the IS-99 method, and then transmits the data to the MSM through the UART and the WLL (Wireless Local Loop) through the RF (Radio Frequency) unit. An analog G3 fax transmission process comprising transmitting to a base station of the system; After setting the analog G3 fax receive mode on the MSM, turn on the analog G3 fax board as soon as it receives a call from the base station of the WLL system and establish a serial data communication path between the analog G3 fax board and the MSM through the UART. Forming a communication path; After performing the communication path forming step, the MSM transmits ring string data to the analog G3 fax board to report the incoming fax status, and if the incoming response string is transmitted from the analog G3 fax board, a call is established according to the IS-99 method. Setting step; A ring generating step of generating a ring to the local fax side by operating a ring drive of the local fax after operating the local fax in a reception mode when the call is set in the call setting step; After performing the ring generation step, when SLIC detects an off hook from a local fax, the MSM receives data from the RF unit and receives digitally processed image data through a multiplexer and a UART and transmits the data to a DTE in an analog G3 fax board. Transmitting step; And If the DTE recognizes the digital data transmitted in the data transmission step as an IS-99 PC fax call and transmits it to the AFE modem of the analog G3 fax board, the AFE modem transmits the digital data according to the IS-99 method. Analog G3 fax reception process consisting of a data transmission step of converting the converted analog data and then transmitting the converted analog data to a local fax through SLIC. Analog fax interface control method in a wireless subscriber network terminal device comprising a. The method of claim 5, The analog G3 fax call origination process in the WLL terminal device, When the MSM detects an off-hook from the local fax, the UART's ACKMSM pin is asserted high to inform the analog G3 fax board of the local fax's handset status, and the dial data is received and stored by the DTMF receiver. A first step of making; Check whether there is a digit prefix of "* 00" among the dial data received in step 1, and if there is no prefix, general voice call processing is performed, and if there is a "* 00" digit prefix, it is an analog G3 fax call. Recognizing and turning on the analog G3 fax board at the MSM and forming a serial data communication path through the UART between the MSM and the analog G3 fax board; After performing the second step, the MSM determines the standby completion state of the analog G3 fax board through the DTR (Data Terminal Ready) pin of the UART, and then digit string data excluding the prefix among the digits stored in the first step. A third step of transmitting)) to the analog G3 fax board; And After performing the third step, the analog G3 fax board receives a certain amount of image data to be sent from the local fax until the buffer is freed, and then calls the MSM using the AT (Auto Turning) command defined in the IS-99 method. 4th step to try Analog fax interface control method in a wireless subscriber network terminal device comprising a. The method of claim 5, The analog G3 fax call forwarding process in the WLL terminal device, A first step of setting an analog G3 fax receiving mode to receive an analog G3 fax call at the MSM; A second step of, after performing the first step, turning on the analog G3 FAX board as soon as the MSM receives the incoming call message and forming a serial data communication path through the UART between the MSM and the analog G3 FAX board; After performing the second step, the MSM determines the standby completion status of the analog G3 fax board through the DTR (Data Terminal Ready) pin of the UART, and transmits the string data "RING" to the serial port to inform the recipient of the fax. A third step of associating a ring indicator (RI) pin; After performing the third step, if an "ATA (AT Attachment)" string is received from the analog G3 FAX board, the MSM sets up a call from the MSM, and then bypasses the "connection" string transmitted from the system and carries a CD (Carriage Detect) pin. A fourth step of asserting; A fifth step of driving a ring drive in the MSM to generate a ring to the local fax side when the REQFAX pin goes low to operate the local fax in a reception mode after performing the fourth step; And Step 6, when the off-hook is detected from the local fax by the corresponding ring signal generated in the fifth step, attaches the ACKMSM pin high to the analog G3 fax board to indicate the handset status of the local fax. Analog fax interface control method in a wireless subscriber network terminal device comprising a. The method of claim 5, If the call is terminated by a call release command when sending a fax from the WLL terminal, the processing is Upon receiving the call release message from the base station, the MSM initializes the serial data path through the external UART, powers off the analog G3 fax board, and processes the on-hook state of the local fax. To control analog fax interface in. The method of claim 5, If the call is terminated by a local fax when sending a fax from the WLL terminal, When the MSM detects a hook condition from a local fax, it deasserts the handset status of the local fax to low by notifying the analog G3 fax board by deasserting the ACKMSM pin low, and then checking the transmission completion status of the analog G3 fax board. A first step of waiting for the DTR pin to be detached to make a connection; And After performing the first step, if the DTR pin is disconnected, the MSM initializes the serial data path through the external UART, turns off the analog G3 fax board, and then transmits a call release message to the base station. Analog fax interface control method in a wireless subscriber network terminal device comprising a. The method of claim 5, If the call is terminated by a call release command when receiving a fax from the WLL terminal, When receiving a call release message from the base station or a "NO CARRIER" string from the system when receiving a fax from the MSM, the string is bypassed and transmitted to the analog G3 fax board, and all the data accumulated in the image data buffer in the analog G3 fax board A first step of waiting for the local fax to go on hook to determine if it has been sent to the local fax; And After performing the first step, if On Hook is detected, the MSM initializes the serial data path through the external UART and turns off the analog G3 fax board. Analog fax interface control method in a wireless subscriber network terminal device comprising a. The method of claim 5, If the call is received by the local fax when receiving a fax from the WLL terminal, the processing is performed. When on-hook is detected when receiving a fax due to image data reception of local fax or abnormal operation of local fax, MSM initializes serial data path through external UART, turns off analog G3 fax board, and releases call to base station. A method for controlling an analog fax interface in a wireless subscriber network terminal device, characterized by transmitting a message. The method of claim 5, If the call termination of the analog fax board in the WLL terminal equipment, When an analog G3 fax board is transmitting or receiving image data, if the Data Terminal Ready (DTR) pin deasserts, the MSM initializes the serial data path through the external UART, powers off the analog G3 fax board, and then Transmitting a call release message to a mobile station; And After performing the first step, the second step that the analog G3 fax board is idle after detecting the on-hook of the local fax Analog fax interface control method in a wireless subscriber network terminal device comprising a.