KR910006681B1 - Automatic dialing method for fax - Google Patents

Abstract

The method uses the multi transmission function of the message handling system to transmit data to the multi receiver at same time. The method includes steps: (A) setting the MODEM by DTMF transmission mode when the start dialing command is received from a FCP; (B) setting a timer by certain time duration and switching the line; (C) dialing for call when the dial tone is recognized and other wise checking that the setting time is over; (D) rechecking the dial recognition and hooking on the line when the setting time is over; (E) reading the next byte data on a phone number buffer and checking that the data is equivalent to from 1 to 9; and (F) checking the pause key and checking that the digit is the last flag when the key is not the pause key.

Description

Automatic dialing method of the facsimile interface device

1, 2 is a system diagram for carrying out the present invention.

3 is a facsimile interface memory table.

4 is a tone data table in accordance with the present invention.

5 is a flow chart according to the present invention.

The present invention relates to an automatic redial method of a facsimile interface device in a message handling system (MHX).

In general, it is known that the facsimile needs to prepare a protocol of P5, a communication protocol of MHS, in order to be serviced by a message processing system (hereinafter referred to as "MHS"). Because the facsimile cannot transmit arbitrary data using the keyboard unlike a personal computer or a texttext, it must be able to transmit the parameters required for the P5 protocol for MHS service. For this purpose, hardware and software have been developed to digitize the data coming from the facsimile using an image scanner. First and second degrees for carrying out the present invention are the hardware diagrams described above. A brief look at the configuration and function of the first and second degrees are as follows.

1 is a known configuration system through a plurality of facsimile 101 and telephones 102, an exchanger 103, a main control processor (MCP) 8 that controls the entire system, and a telephone 102. FIG. A facsimile interface unit (FIU) 11 connected to the facsimile 101 connected to the exchange 103 to process a function of receiving a block request from the facsimile 101 or transmitting service contents to the facsimile 105. And a facsimile control processor (FCP) 10 which detects various internal and external signals and facilitates data transmission and reception between the MCP 8 and the FIU 11, and FAX. An image control processor (ICP) 12, which performs a function of converting a code into an image for outputting an output form to a terminal, a hard disk 104 for storing a mailbox and a floppy disk 105 for a hard disk backup, is provided. Ha Upon receipt store data of the facsimile 101, and consists of a peripheral control processor (PCP) (105) for outputting the stored data during transmission.

2 is a detailed block diagram of the FIU 11 in FIG.

First, the FIU 11 and the FCP 10 will be described before the overall system description.

As shown in FIG. 2, the network control unit (NCU) 23 is a device which is directly connected to the private exchange (PABX) 103 to control the connection to various devices in the FIU 11.

When a ring comes in from the phone 102, a ring detector in the NCU 23 detects the ring and informs the CPU 14 directly, and the CPU 14 sends the MCP 8 to it. A call notification is sent to the NCU 23 to instruct the NCU 23 to connect the data bus. At this time, when a command to output voice from the MCP 8 to receive push button data is received, the CPU 14 receives the voice data of the EPROM 18 through the codec 21. Print to the user. When a user hears a voice signal and transmits PB data (combination of 0-9, #, *) to the DTMF receiver (DTMF-R) 20 by using a push button (PB) of the telephone 102. The DTMF-R 20 converts analog data into digital, interrupts it with an interrupt controller (INTC) 16, writes the PB data to a designated buffer in the RAM 19, and directs it to a direct memory access controller (DMAC) ( 15) to the FIFO (17) and to the MCP (8). When the voice output and PB data reception is repeated such that all PB data reception is completed, the terminal finally hooks on the phone and presses the communication button of the facsimile 101 to give a voice output. Thereafter, T and 30 protocol communication is performed between the facsimile modem and the modem 22 in the FIU 11. At this time, the protocol information sent and received is the type of the facsimile, the line speed, the font mode and the like. When such a rule is established, the actual facsimile image data is transmitted to the FCP 10 using the MODEM 22 and the DMAC 15. Image information is transmitted to the MCP (8), and the MCP (8) receives the message information, and the transmission in units of blocks with the PCP (13). When the transmission is finished, when the transmission is to be disconnected with the other facsimile, the new fax finds a new free line and connects to it. The data is transmitted by the other facsimile in block units. When the transmission is completed, the transmission is terminated.

First, upon reception, image data is received from the FIU 11 and passed to the MCP 8, and the MCP 8 writes to the hard disk 104 or the floppy disk 105 of the PCP 13, and at the time of transmission, the MCP 8 Block information is transmitted from the PCP 13 to the FIU 11 in accordance with the message information. In addition, in consideration of scalability, it is possible to connect several FIUs 11 to one FCP 10. The FCP 10 performs an interface function with the PCP 13 during transmission and reception, and the expansion of the FIU 11 is easy.

The telephone operation is that when the user hooks off the handset of the telephone 102 in order to transmit the facsimile data, the PABX 103 sends a ring tone to the CPU 14 and the ring back tone to the user. Outputs

The CPU 14 detects a physical line on which a ring signal is on and sends a communication message to the FCP 10 through the FIFO 17, and the FCP 10 sends the MPC 26 to the MCP 8. Send a communication message through. At this time, the MCP 8 analyzes the communication message, detects the call notification that the ring is coming, and transmits the communication message via the FCP 10 to the FIU 11 to receive control data. The FIU 11 connects the data bus when the NCU 23 detects a ring tone, and the CPU 14 analyzes the communication message.

Since the message has a command to output a voice for receiving control data, the voice data of the EPROM 18 is sent out to the user's telephone 102 through the CODEC 21. A character string that is a combination of (0-9, *, #) is input through the push button PB of 102. The DTMF-R 20 which receives the PB data converts the input analog signal into a digital signal, stores it in the RAM 19, transfers it to the MCP 8 through the FIFO 17 by the DMAC 15, and transmits the MCP ( 8) instructs voice output until all PB data is received and performs the repeated operation of receiving PB data. When the MCP 8 receives all of the PB data by the above operation, the FIU 11 sends the MCP 8 a notification of completion of voice output and reception of the PB data. At this time, when the user puts the telephone according to the last voice output and presses the communication button of FAX, the telephone line is disconnected from this time, and the line of the facsimile is connected to perform communication between the facsimile 101 and the FIU 11. The modem of the user facsimile performs the T.30 protocol with the MODEM 22 in the FIU 11, and the work to be done at this time is to determine the type of the facsimile, the line speed, and the setting of the normal fine mode. After the progression, the MCP 8 receives the data of the block (8K) unit from the FIU 8 with the instruction that it may send the facsimile image data to the FIU 8 of the MODEM 22 and the DMA 15. By using the function, when the reception of the image data is completed, the service of the application S / W 7 in the MCP 8 is received. At this time, the application S / W 7 is related to the Message Handling System (MHS) recommended by the CCITT and is provided with services such as mailbox management and other broadcasting and time designation. While the service line of the application S / W (7) is being serviced, the connection line that was used for reception was rested, so this connection line is cut off and this line can be used by other users. to be. There are logical lines and physical lines. Logical lines correspond to 1: 1 with physical lines and are the same concept as IDs of physical lines used to check whether a physical line is in use. In order to manage the logic line, a management table is placed in the FSRP 3 to manage the state of the physical line used for fax transmission and reception. When all lines are in use, wait for retry. The physical line refers to four lines connected to the FIU 11 which is actually H / W, and is in charge of managing these lines in the FIU 11.

The reason for managing the logical line and the physical line separately is to receive and receive the service of the application S / W, and to transmit and receive only when receiving the correspondent facsimile. After the service is completed, the application software checks whether there is a free line, and checks in the line management table to connect a line that is not in use and transmit it. That is, it is a technique to save the unused time of the physical line between transmission and reception.

When the service of the application S / W 7 is finished, a job for transmitting the received image data to the other party's facsimile is developed. First, because the line was disconnected when reception was completed, a new line must be connected. To do this, the MCP (8) manages the logical line and checks whether it is in use by the logical line management table. If there is an unused line, it grabs the line and informs the FIU (11) of the fact. The actual line is connected and the MCP 8 is notified of the connection result.

Then, the MCP 8 sends the block data of the facsimile data to the FCP 10, and the block data transmission is performed between the FCP 10 and the PCP 13.

As described above, the facsimile 101 has been receiving a telephone number from the facsimile 101 for automatic transmission and dialing a relative fax at a specified time. In this case, automatic transmission is fragmentary and limited in service, and when the relative fax is busy, no further calls can be made. Also, for broadcasting, the user has to dial sequentially.

Accordingly, an object of the present invention is to provide a method for servicing a broadcasting function to a user by using the broadcasting function among the basic functions of the MSH.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

3 is an interface memory table diagram of the facsimile modem modem according to the present invention, in which 8-bit data is stored in each register (? -F) by mode and function. Figure 3 shows PDM in parallel data mode, IAø is interrupt active, IEø is interrupt enabled, MDAø is modem 22 data valid, RTS is used as Request-To-Send, TDIS train disable signal, R is reserved This area is used only by the modem 22, and register addresses 0-3 correspond to the low and high frequency recording data of the tone data of the modem 22 on the RAM 19 for each digit. Each of the " low " and " high " is also divided into corresponding tone frequency and level data and stored as shown in FIG.

5 is a flowchart according to the present invention, which comprises a first step of receiving a telephone number from the FCP 10 together with a start dialing command in the telephone buffer and setting the state of the modem 22 to DTMF transmission mode; In step 2, the modem switches the line from the transmission mode setting of the DTMF signal to the hook-off state, sets a timer for a predetermined time, and checks whether the dial tone is recognized after setting the second time. A third step of checking whether the setting time of the second step has passed when not recognized, and a fourth of checking on the dial recognition of the third step when the setting time has not elapsed in the third step and hooking on when it has passed. And a fifth step of checking whether or not a digit corresponding to 1-9 is read by reading the next byte of data from the telephone number buffer when the call is dialed in the third step; Step 6 in step 5 to check if the digit is within the digits of 1-9, if it is a pose key, and if it is a pose key, if it is not a pose key, check the last flag for the phone number and search for the ringtone at the last flag. A seventh step of selecting four pieces of data corresponding to a telephone number from a tone table and storing the digit data in a RAM in a modem when the number corresponds to 1-9 in the fifth step; and the call data of the seventh step. Is set to the Request To Send (RTS) mode of the modem, delayed for a time that the exchange side can recognize the DTMF signal, and then the RTS is zero, and delayed so that the exchange knows between the digit and the digit. And a ninth step of setting a ringback tone recognition time and checking whether a synchronization signal for circuit connection checking is received when the ring signal is detected in the sixth step. In the ninth step, the control unit is transferred to the command receiving unit at the same time, and when the synchronous reception is not performed, if there is no signal during the ringtone check time, the hook-on ends the processing and the digit data into the memory of the modem in the seventh step. Storing the corresponding access code and waiting for the modem data processing permission bit to be set, and setting a memory write command when the memory write command is set according to the setting of the memory write command of the first step. A 12th step of checking whether the modem data processing permission bit is valid after storing the tone frequency and tone level data in the order of the low and high frequency; and in the 12th step, the modem data processing permission bit is valid. The thirteenth step of checking whether there is data for four of the corresponding digit data to be stored any more. And a fourteenth step of changing the address of the digit storage memory when there are more digits to store in the thirteenth step, repeating the thirteenth step, and initializing the memory write mode when there are no more.

Therefore, a specific embodiment of the present invention will be described in detail with reference to FIGS. 1-5. In the MCP 8, a Mass Handling System (MHS) resides for the FAX 101 broadcast, and the FCP (FAX) according to the MHS command. The control processor 10 generates a command called SDL (Start Dialing) from the MCP 8 and sends it to the FAX Interface Unit (FIU) 11, where the FIU 11 stores the telephone number in a buffer for storing the telephone number ( After saving to the TELBOF), it will enter the auto dialing. The actual FIU 10 is connected to the PABX 103 by four lines, and FIG. 2 is a part in which the H / W block is drawn in detail of the FIU 11 which is in charge of the actual automatic dial. In this case, when the SDL command is received from the FCP 10 through the FIFO 17, the reception is performed using the DMA 15. When the DMA 15 loads both the SDL and the telephone number into the buffer TELBUF, an interrupt is automatically generated to the INTC 16, and control is transferred to a routine for automatic dialing. The automatic dial then reads the data in the buffer TELBUF one by one and starts dialing using the ramlight function of the modem 22. After dial completion, the codec 25 sends out a voice to press the communication button of FAX 101 instead of the tone of 1100MHZ, and the automatic dialing is completed when Sync = (01111110) data is received from the FAX 101. .

3 is an interface memory table of the modem 22, which is necessary for automatic dialing, to perform automatic dialing using S / W.

4 shows tone data corresponding to each telephone number at the time of RMA writing to the modem 22. FIG. Note that this is a data table needed to perform the DTMF transfer function.

The actual automatic dial will be described in detail with reference to FIG. 5. In step 5a, when the CPU 14 receives the SDL and the command from the FCP 10, the CPU 14 transfers control to the DMAC 15 and the DMAC. (15) stores the received data in the telephone buffer of RAM 17 and receives it. In step 5b, the CPU 14 puts the configuration of the modem 22 in the DTMF transmission state. Set 4 to CONFIGURATION. In step 5c, the CPU 14 controls the NCU 23 to control the hook-off state. Next, in step 5d, the CPU 14 sets the timer in the CPU 14 to 3 seconds to determine the dial tone recognition time. When the CPU 14 checks whether the dial tone is recognized in step (5e) and recognizes the dial tone in step (5h), and checks whether the time set in step (5e) has passed in step (5f) when it is not recognized in step (5f). do. If not recognized even after 3 seconds set in step (5f), the CPU 14 controls the NCU 23 to be in the hook-on state. If the call dial is described in detail in FIG. 5B in step (5h), the CPU 14 reads the next data in the phone buffer of the RAM 19 in step (5i) and dials the phone number in step (5j). Check whether the digit data in the digit ranges from 0 (2FH) -9 (3AH). If it is not the digit data of the corresponding range in step (5j), it is checked whether Pazuki digit data (Tel # = 2C) is made in step (5g). In step (5g), check whether the flag data (TEL # = NU) for the end of the telephone number is not a pose.

When the pause digit data in step (5g) is delayed for 2 seconds in step (5r), it is executed again from the beginning, and when the last flag PLAG (01111110) = Sync is not in step (5c), as in (5g). It is processed from the beginning again, and when the flag for the last number of the phone number is detected, the ringback tone is sensed by detecting the ringing in the process (5t). However, in the case of digit data in the range 0-9 in step (5j), four data corresponding to the telephone number are selected from the tone table in FIG. 4 in step (5k), and the RAM data in the modem 22 is selected in step (5l). Save it. In step 5m, the CPU 14 sets the RTS of the modem 22 to " 1 ". It recognizes the PABX 103 when DTMF data is sent to the PABX 103. In step (5n), send it for 95mSec for recognition. After the 95 mSec, the CPU 14 sets the RTS of the modem 22 to 0, and delays 70 mSec between the digits and the digits in order to check the next digit in the PABX 103 at 70 mSec (5p).

Meanwhile, when the ring signal recognition is described in detail with reference to FIG. 5C in step 5t, a timer of 40mSec is set in the CPU 14 to check the ringback tone, and in step 5v, synchronization signal synchronization is received. To check the synchronization signal, the FAX 101 receives the DTMF and sends the first DIS to the CPU 14, which is generated by the first first digit. Because of this, when a sync signal comes in, it is possible to recognize that the line is connected by DTMF digit data.

If the synchronization signal is received in the step (5v), the command of the T.30 protocol (FAX function control protocol) is processed and the control right is transferred to the FAX 101 so that the receiver of the FAX 101 performs the corresponding processing. If there is no synchronization signal, check whether the time set in the step (5w) has passed in step (5x). Here, when 40mSec time has passed (5y), the NCU 23 is controlled to hook on. Referring to the method of storing the digits in the modem 22 in step 5e in detail in FIG. 5d, the digits are stored in the RAM address F of the modem 22 in step 6a, and in step 6b. Check if modem 22 data enable bit MDA0 of FIG. 3 is set to " 1 ". When it is set to "1" in step (6b), it sets the ram write command bit (DAMWS) of FIG. 3 to "1" and the tone data of the modem 22 of FIG. 4 in steps (6d) and (6e). 4 bytes of data are stored in registers # 1- # 4 for each digit according to tone frequency and tone level according to low and high. Next, check whether MDA0 is "1" in step (6f), and check whether there is more data (within 4) in step (6g). In step (6g), if the RAM bit is changed in step (6a) by repeating steps (6d) through (6f), and when all are stored, the operation is completed by setting the RAMWS bit to 0 in step (6i). . In other words, the overall function is as follows.

In the automatic dial method, an SDL command and a phone number are received from the FCP 10. The phone number is stored in a buffer called TELBUF. Then, the DTMF transmission 81H is written in the configuration registers 3-0: 4 of the modem 22, and the switch of the NCU 23 is connected to the data line to perform a hook-open function. It then runs a 3 second timer to check the dialtone and, if it is recognized, passes control to a dialing routine that dials the actual TELBUF phone number. The dial routine prepares to send a dial tone to the PABX 103 using a RAM write routine that reads one byte from TELBUF and writes eight bytes of data in the tone table. Thereafter, the RTS (0: 5: 7) bits of the modem 22 are set to 1 to output the tone data written by the RAM write routine. In the RTS (0: 5: 7), 0 is a chip number, 5 is a register, and 7 is a ram designation data. After the 95mSec delay, the RTS is set to zero again to stop the transmission of the tone data. After that, the phone number data is re-exported after a delay of about 70mSec to allow time between phone numbers. If you repeat this process and encounter a pause code, you will be sent a second phone number after a delay of 2 seconds. However, when NUL data is encountered at the end, control is passed to the ring sense routine that detects the ringback tone from the exchange. This routine continuously checks Sync = (01111110) while driving the timer for 40 seconds. If a sync is received, transfer control to the DIS transmitter of T. 30 protocol and complete the autodial.

If the timer is out while the synchronization is not received, the line is disconnected by moving the switch of the NCU 23 to the ring line and hooking it on. The RAM write routine is further described here, first transfer control and then store the appropriate access code in third-party RAMA (0: F: 6-0) and wait for DMA to become 1. When DMA goes to 1, the RAMWS (0: 5: 5) bits are set to 1 to set the signals that can be written to RAM. The tone data is then read from the tone data table and written to the YSM and YSL registers of the modem 22 at tone frequency tone level 1, tone frequency 2, and tone level 2, respectively, with RAMWS set to zero and returned to control transfer to the dial-routine. .

As described above, the broadcasting function of the MHS is actually implemented by automatic dialing in the FIU, so there is an advantage in that FAX data can be simultaneously transmitted to multiple FAX users.

Claims (1)

A method for automatically dialing a facsimile interface device having an FCP (10), comprising: a first step of receiving a telephone number from a telephone buffer with a start dialing command from the FCP (10) and setting a state of a modem to a DTMF transmission mode; And a second step of switching a modem from the transmission mode setting of the DTMF signal to the hook-off state and setting a timer for a predetermined time in the first step, and checking whether the dial tone is recognized after setting the second time. The third step of checking whether the setting time of the second step has elapsed when the call is dialed and not recognized, and the checking of the dial recognition of the third step has been rechecked when the setting time has not elapsed in the third step. In the fourth step of hooking on and reading the data of the next bit from the telephone number buffer when the call is dialed in the third step, a device corresponding to 1 to 9 is read. A fifth step of checking whether the jit is applied, and if the digit is not a digit corresponding to 1-9 in the fifth step, the Pose key is checked and the predetermined flag is specified as the Pose key, and the last flag for the telephone number is checked. 6th step of searching for the ringtone when the last flag is selected, and selecting the four data corresponding to the telephone number from the tone date when the digit is within 1-9 in the fifth step, and storing the digit data in the RAM of the modem. And setting the call data of the seventh step to the transmission request signal mode of the modem, delaying the time for the DTMF signal to be recognized by the exchange side, and then setting the RTS to zero, and then between the digit and the digit. An eighth delay delaying the exchange to know, and when detecting a ring signal in the sixth step, set a ringback tone recognition time and check whether a synchronization signal for circuit connection checking is received. In the ninth step, when the synchronous reception in the ninth step transfers the control right to the comment receiving unit, and if there is no signal during the ringtone check time when the synchronous reception is not received, the tenth step to end the process and the seventh step; In step 11, when storing the digit data in the memory of the modem, storing the accessed code and waiting for the modem data processing permission bit to be set. A 12th step of checking whether the modem data processing permission bit is valid after storing the tone frequency and tone level data for the low and high frequency of the tone digit according to the setting of the write command; When the modem data processing permission bit is in a valid state, data for four of the corresponding digit data to be stored is no longer stored. And a thirteenth step of checking whether there is more digits to be stored in the thirteenth step, and changing the address of the digit storage memory to repeat the thirteenth step and initializing the memory write mode when there are no more digits. How to feature.

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