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Multitech MultiModemDSVD User Manual

Data/fax/voice modem
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  • Page 2 FCC Part 15 This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy, and if not in- stalled and used in accordance with the instructions, may cause harm- ful interference to radio communications.
  • Page 4 Manual released. Trademarks MultiModemDSVD, Multi-Tech, and the Multi-Tech logo are trademarks of Multi-Tech Systems, Inc. IBM is a trademark of International Business Machines Corporation. MNP and Microcom Network Protocol are trademarks of Microcom, Inc. K56flex is a registered trademark of Rockwell International Corporation and Lucent Technologies Corporation.

  • Page 5: Table Of Contents

    Contents Chapter 1: Introduction Introduction ..........................2 Product Description ........................ 2 Features ............................ 2 What Is in Your Modem Package? ..................4 Related Manuals ........................4 Chapter 2: Quick Start Introduction ..........................6 What You Will Need ......................6 We supply ......................... 6 You supply ........................
  • Page 6 MultiModemDSVD User Guide Chapter 4: AT Commands, S-Registers & Result Codes AT Commands ........................26 AT Command Summary ..................... 27 Voice Commands ........................42 S-Registers ..........................44 Result Codes .......................... 48 Chapter 5: Solving Problems Introduction ........................... 52 None of the Indicators Light ....................52 The Modem Does Not Respond to Commands ...............
  • Page 7 Contents Appendix E: Upgrading the Modem Introduction ........................... 77 Upgrade Overview ....................... 77 Step 1: Identify the Modem Firmware ................77 Step 2: Identify the Current Firmware Version ..............78 Multi-Tech Web Site ...................... 78 Multi-Tech BBS ......................78 Step 3: Download the Upgrade File ................... 79 Multi-Tech Web Site ......................
  • Page 8 MultiModemDSVD User Guide viii...
  • Page 9 Introduction...

  • Page 10: Introduction

    MultiModemDSVD User Guide Introduction Congratulations on your purchase of your MultiModemDSVD! You have acquired not only one of the finest intelligent data, fax, and voice modems available, but a modem that can transmit voice and data at the same time. This owner’s manual will help you install, configure, test and use your modem.
  • Page 11 1 Introduction Data • Supports the K56flex and ITU-T V.90 standards for data transmission speeds up to 56K bps while maintaining compatibility with lower-speed modems. Note: Under the 56K bps standards, you can asymmetrically download data from an ISP at speeds up to 56K bps, but upload at speeds only up to 33.6K bps. •...

  • Page 12: What Is In Your Modem Package

    MultiModemDSVD User Guide What Is in Your Modem Package? Your modem package has several components. Make sure you have them all before trying to operate your modem. Your package should include: • An MT5600DSVD2 modem A DC power supply •...

  • Page 13: Chapter 2: Quick Start

    Quick Start...

  • Page 14: Introduction

    MultiModemDSVD User Guide Introduction We know you are eager to get your MultiModemDSVD2 up and running, so we’ll show you step-by-step how to set it up, check it out, and make your first calls. What You Will Need Before starting, please make sure you have everything you need:...

  • Page 15: Step 1: Mount The Feet

    2 Quick Start Step 1: Mount the Feet The modem comes with a strip of self-adhesive plastic feet, which you can optional- ly mount on the bottom of the modem. To install the feet, simply peel them from their paper strip and press them into the recesses on the bottom of the modem. Figure 2-1.

  • Page 16: Rs232 Connection

    MultiModemDSVD User Guide RS232 Connection Plug one end of the serial cable into the RS232 connector on the modem, and the oth- er end into a serial port connector on your computer, such as COM1 or COM2. Line Connection Plug one end of the phone cable into the modem’s LINE jack, and the other end into a phone line wall jack.

  • Page 17: Step 3: Install The Modem Driver

    2 Quick Start Step 3: Install the Modem Driver If you use Windows 95, Windows 98, or Windows NT 4.0, you must install the modem driver. (If you use Windows 3.1 or another operating system, skip this step and go to Step 4.) The modem driver is a description of the modem, which Win- dows uses to control the modem.

  • Page 18: Step 4: Install And Configure Your Software

    MultiModemDSVD User Guide Step 4: Install and Configure Your Software You must have communication software installed in your computer to use your Multi-Tech modem. If you wish to use communication software that is already in- stalled, you should reconfigure it for your new modem; otherwise, install the data and fax communication software provided with the modem.

  • Page 19: Step 5: Call The Multi-Tech Bbs

    2 Quick Start 14550 UART as an 8250A UART. If you have an 80386 or later computer, your UART is most likely a 14550 or 16550AFN. 7. If the software has an autobaud selection, make sure it is disabled. Autobaud applies only to older modems, and can cause problems if enabled.

  • Page 20: Windows Hyperterminal

    MultiModemDSVD User Guide 14. At the file name prompt, if you have Microsoft Word 6.0 or later, type register.doc and press ENTER. If you do not have Microsoft Word, type register.txt and press ENTER. 15. Press ENTER twice more. 16. To select the Zmodem transfer protocol, type Z and press ENTER.

  • Page 21: Windows Terminal

    Baud rate to 19200; Flow control to Hardware; and Carrier Detect to checked. Modem Commands: Select MultiTech. If you must dial 9 to get an outside line, type ATDT9, in the Dial prefix box (include the comma). 3. Click File, then click Save, and save as multibbs.trm.

  • Page 22: Step 6: Send A Fax

    MultiModemDSVD User Guide Step 6: Send a Fax To test your modem’s fax capabilities, send the completed registration file that you downloaded in “Step 6: Call the Multi-Tech BBS” to Multi-Tech or to a fax machine in your office. Trio Fax 1.

  • Page 23: Quick Start

    2 Quick Start 6. If you are sending the registration form to your own fax machine or to another fax modem in your office, type the destination name and phone number in the To and Fax # boxes. If you are sending the registration form to our offices, type Multi-Tech Systems in the To box, and 612 785-9874 in the Fax # boxes.

  • Page 24: Voice Operation

    MultiModemDSVD User Guide Voice Operation Operation in DSVD mode enables data transfer and voice conversation to occur simultaneously during a data connection. On a DSVD call, an ordinary telephone connected to the modem is used as the voice interface. Both local and remote mo- dems must have compatible DSVD technology to support the DSVD function.

  • Page 25: To Answer A Dsvd Call

    The fol- lowing Web sites are good places to start: • Costmo’s Other Resources Page: http://modems.rosenet.net/ • Curt’s High Speed Modem Page: http://elaine.teleport.com/~curt/modems.html • Data Communications FAQ: http://www.best.com/~malch/comfaq.html • Multi-Tech Systems, Inc.: http://www.multitech.com/...
  • Page 26 MultiModemDSVD User Guide...

  • Page 27: Chapter 3: Features

    Features...

  • Page 28: What Can You Do With Your Modem

    MultiModemDSVD User Guide What Can You Do with Your Modem? Your Multi-Tech MultiModemDSVD is the gateway to the exciting world of tele- communications. You can use it to access commercial online information services such as Com- puServe, America Online, Genie, and Prodigy; or the Internet. Like the commercial...

  • Page 29: Telephone Line

    3 Features Telephone Line You must have a telephone line with a jack (connector) that accepts the cable that comes with the modem. If you do not have a telephone jack near your computer, you should install one before proceeding. In North America, do-it-yourself telephone extension kits and accessories are avail- able wherever telephones are sold.

  • Page 30: Connecting To A Telephone Set ("Phone")

    MultiModemDSVD User Guide Note: The LINE jack is not interchangeable with the PHONE jack. Do not plug the telephone into the LINE jack or the line cable into the PHONE jack. Note: The Federal Communications Commission (FCC), Industry Canada, the Brit- ish Approvals Board for Telecommunications (BABT), and other regulatory agencies impose certain restrictions on equipment connected to public telephone systems.

  • Page 31: Front Panel

    3 Features Front Panel Figure 3-2. Front panel The MultiModemDSVD has ten LED indicators on the front panel that indicate status, configuration, and activity: Transmit Data. The TD LED flashes when the modem is transmitting data to another modem. The state of the LED matches the TD circuit on pin 2 of the RS- 232C/V.24 interface.
  • Page 32 MultiModemDSVD User Guide Note: When you turn on the modem, the speed lights flash briefly as the modem does a self-test, then the LED for the default modem baud rate lights. The default rate for the modem is 56K bps. After a call, the LEDs for the connection’s baud rate remain lit until another call is made or the modem is reset.

  • Page 33: Chapter 4: At Commands, S-Registers & Result Codes

    AT Commands, S-Registers & Result Codes...

  • Page 34: At Commands

    MultiModemDSVD User Guide AT Commands AT commands are used to control the operation of your modem. They are so called because each command must be preceded by the characters AT to get the ATtention of the modem. AT commands can be issued only when the modem is in command mode or online command mode.

  • Page 35: At Command Summary

    4 AT Commands, S-Registers, and Result Codes AT Command Summary Command: Attention Code Values: Description: The attention code precedes all command lines except A/ and the escape sequence. Command: ENTER Key Values: Description: Press the E or R key to execute most commands. NTER ETURN Command:...
  • Page 36 MultiModemDSVD User Guide W Wait for a new dial tone before continuing to dial. (X2 or X4 must be selected.) Pause during dialing for time set in register S8. Return to command mode after dialing. (Place at end of dial string.) Hook flash.
  • Page 37 4 AT Commands, S-Registers, and Result Codes Display the OEM-defined identifier string in either binary or ASCII format. Display the country code (e.g.: 022). Display the modem data pump model and internal code version. Command: Monitor Speaker Volume Values: n = 0, 1, 2, or 3 Default: Description: Select low volume.
  • Page 38 MultiModemDSVD User Guide Command: Result Codes Enable/Disable Values: n = 0 or 1 Default: Description: Enable result codes. Disable result codes. Command: Select Register Values: r = S-register number Default: None Description: Selects register Sr as the last register accessed. E.g., S0. The command AT? can then be used to read the register, and the command AT=n can then be used to set the register to value n.
  • Page 39 4 AT Commands, S-Registers, and Result Codes Command: Result Code Selection Values: n = 0–4 Default: Description: This command selects which subset of the result messages will be used by the modem to inform the computer of the results of commands.
  • Page 40 MultiModemDSVD User Guide Command: &D n Data Terminal Ready (DTR) Control Values: n = 0, 1, 2, or 3 Default: Description: This command interprets the high to low transition of the DTR signal from the computer according to the supplied parameter.
  • Page 41 4 AT Commands, S-Registers, and Result Codes Command: &K n Flow Control Selection Values: n = 0, 3, 4, 5, or 6 Defaults: 3 (data modem mode) 6 (fax modem and voice modes) Description: &K0 Disable flow control. &K3 Enable CTS/RTS hardware flow control. &K4 Enable XON/XOFF software flow control.
  • Page 42 MultiModemDSVD User Guide Command: &T n V.54 Test Commands Values: n = 0, 1, 3, 4, 5, 6, 7, or 8 Default: None Description: The modem can perform selected test and diagnostic func- tions. A test can be run only when the modem is in asynchro- nous operation in non-error-correction mode (normal or direct mode).
  • Page 43 4 AT Commands, S-Registers, and Result Codes Command: &W n Store Current Configuration Values: n = 0 Default: None Description: &W0 Stores current modem settings in nonvolatile memory as pro- file 0 and causes them to be loaded at power-on or following the ATZ command instead of the factory defaults.
  • Page 44 MultiModemDSVD User Guide Command: Line Signal Level Values: None Default: None Description: Returns a value that indicates the received signal level in dBm. The value returned is a direct indication (DAA-dependent) of the receive level at the MDP, not at the telephone line connec- tor.
  • Page 45 4 AT Commands, S-Registers, and Result Codes Command: \J n Data Buffer Control Values: n = 0 Default: Description: Enable data buffer—serial port speed is independent of con- nect speed. Disable data buffer—serial port speed is forced to the line speed. Command: \K n Break Control...
  • Page 46 MultiModemDSVD User Guide Command: \N n Error Correction Mode Selection Values: n = 0–5 Default: Description: Normal (non-error correction) mode with data buffering. (Forces &Q6.) Direct mode. Equivalent of &M0 and &Q0 modes. (Forces &Q0.) V.42/MNP reliable (error-correction) mode. The modem at- tempts first a V.42 connection and then an MNP connection.
  • Page 47 4 AT Commands, S-Registers, and Result Codes +MS=? Reports supported options in the format: +MS: (list of sup- ported <mod> values), (list of supported <automode> values),(list of supported <min_rate> values),(list of supported <max_rate> values), (list of supported <x_law> values), (list of supported <rb_signaling>...
  • Page 48 MultiModemDSVD User Guide highest rate to be 14400 bps. See “Possible rates” in the <mod> table. The default is 56000, for 56000 bps. <x_law> An optional number that specifies the PCM code type for 56K modulation. The options are: 0 = µ-Law—used in North America and Japan (default) 1 = A-Law—used outside North America and Japan...
  • Page 49 4 AT Commands, S-Registers, and Result Codes Distinctive ring type Ring cadence detection criteria 2.0 sec. on, 4.0 sec. off 0.8 sec. on, 0.4 sec. off, 0.8 sec. on, 0.4 sec. off 0.4 sec. on, 0.2 sec. off, 0.4 sec. on, 0.2 sec. off, 0.8 sec. on, 0.4 sec. off Command: ** n Flash Memory Download...

  • Page 50: Voice Commands

    A connected telephone can be used for voice communication during DSVD mode. In addition to the following commands, the MultiModemDSVD supports voice com- mands that are mainly of interest to developers. Information about those commands can be found in the Voice #V Commands Developer’s Kit, available on the Multi-Tech Web site at http://www.multitech.com/support/manuals/82039201.pdf.
  • Page 51 4 AT Commands, S-Registers, and Result Codes Command: #CLS= n Data, Fax, or Voice/Audio Select Values: n = 0, 1, 2, or 8 Default: Description: #CLS=0 Data mode: The modem acts like a data modem on subsequent answer or originate operations. #CLS=1 Class 1 fax mode: Selects Class 1 fax modem operation.

  • Page 52: S-Registers

    MultiModemDSVD User Guide S-Registers Certain modem values, or parameters, are stored in memory locations called S- registers. Use the S command to read or to alter the contents of S-registers (see previous section). Register Unit Range Default Description 1 ring 0, 1–255...
  • Page 53 4 AT Commands, S-Registers, and Result Codes Register Unit Range Default Description seconds 0–255 Sets the length of time that the modem conducts an &T test before returning to the command mode. If the value is zero, the test must be terminated from command mode by issuing an &T0 or H command.
  • Page 54 MultiModemDSVD User Guide Register Unit Range Default Description 6 Reserved. 7 An MNP connection is attempted and, if it fails, a normal modem connection is established. decimal Sets the maximum V.34 speed at which the modem attempts to connect. Attempts an automode connection.
  • Page 55 4 AT Commands, S-Registers, and Result Codes Register Unit Range Default Description decimal 0, 4, 5, 9, n/a When the modem issues a NO CARRIER 12, 13, 14 result code, a value is written to this register to help determine the reason for the failed connection.

  • Page 56: Result Codes

    MultiModemDSVD User Guide Result Codes In command mode your modem can send the following responses, called result codes, to your computer. Result codes are used by communications programs and can also appear on your monitor. Terse Verbose Description Command executed...
  • Page 57 4 AT Commands, S-Registers, and Result Codes Terse Verbose Description CONNECT 24000 Connected at 24000 bps CONNECT 26400 Connected at 26400 bps CONNECT 28800 Connected at 28800 bps COMPRESSION CLASS 5 Connected with MNP Class 5 data compression COMPRESSION V.42 bis Connected with V.42 bis data compression COMPRESSION NONE Connected without data compression PROTOCOL NONE...
  • Page 58 MultiModemDSVD User Guide Terse Verbose Description CONNECT 37333 Connected at 37333 bps (V.90 mode) CARRIER 37333 37333 bps data carrier detected (V.90 mode) CONNECT 38667 Connected at 38667 bps (V.90 mode) CARRIER 38667 38667 bps data carrier detected (V.90 mode) CONNECT 41333 Connected at 41333 bps (V.90)

  • Page 59: Chapter 5: Solving Problems

    Solving Problems...

  • Page 60: Introduction

    MultiModemDSVD User Guide Introduction Your modem was thoroughly tested at the factory before it was shipped. If you are unable to make a successful connection, or if you experience data loss or garbled characters during your connection, it is possible that the modem is defective. How- ever, it is more likely that the source of your problem lies elsewhere.

  • Page 61: The Modem Does Not Respond To Commands

    5 Solving Problems The Modem Does Not Respond to Commands Make sure the modem is plugged in and turned on. (See “None of the Indicators Light.”) Make sure you are issuing the modem commands from the data communications software, either manually in terminal mode or automatically by configuring the software.

  • Page 62: The Modem Dials But Cannot Connect

    MultiModemDSVD User Guide click Advanced, and select the new port address and/or interrupt. If you wish to use COM3 or COM4, note that COM3 shares an IRQ with COM1, as does COM4 with COM2, so you should change their IRQs to unused ones, if possible.

  • Page 63: The Modem Disconnects While Online

    5 Solving Problems If the modem reports BUSY, the other number might be busy, in which case you should try again later, or it might indicate that you have failed to add a 9, prefix to the phone number if you must dial 9 for an outside line. If you must dial 9 to get an outside line, the easiest way to dial it automatically is to include it in the modem’s dial prefix, e.g., ATDT9,.

  • Page 64: The Modem Cannot Connect When Answering

    MultiModemDSVD User Guide The Modem Cannot Connect When Answering Autoanswer might be disabled. Turn on autoanswer in your datacomm program or send the command ATS0=1 (ATS0=2 if you have Caller ID service) to your modem in terminal mode. File Transfer Is Slower Than It Should Be You might have an older UART.

  • Page 65: There Are Garbage Characters On The Monitor

    5 Solving Problems If you are running under Windows 3.1 and have a 16550AFN UART, you might need to turn on the 16550’s data buffers and/or replace the Windows serial driv- er, COMM.DRV. Try entering the &V1 command to display information about the last connection, making a screen print of the connection statistics, and checking for parameters that might be unacceptable.
  • Page 66 MultiModemDSVD User Guide...
  • Page 67 Appendixes...

  • Page 68: Appendix A: Regulatory Compliance

    MultiModemDSVD User Guide Appendix A: Regulatory Compliance FCC Part 68 Telecom 1. This equipment complies with part 68 of the Federal Communications Commis- sion Rules. On the outside surface of this equipment is a label that contains, among other information, the FCC registration number. This information must be provided to the telephone company.

  • Page 69: Fax Branding Statement

    A Regulatory Compliance Manufacturer: Multi-Tech Systems, Inc. Trade Name MultiModemDSVD Model Number: MT5600DSVD2 AU7USA-24713-M5-E FCC Registration No: Ringer Equivalence: 0.3B Modular Jack (USOC): RJ11C or RJ11W (single line) Service Center in USA: Multi-Tech Systems, Inc. 2205 Woodale Drive Mounds View, MN 55112...

  • Page 70: Canadian Limitations Notice

    MultiModemDSVD User Guide Canadian Limitations Notice Notice: The ringer equivalence number (REN) assigned to each terminal device pro- vides an indication of the maximum number of terminals allowed to be connected to a telephone interface. The termination on an interface may consist of any combination of devices subject only to the requirement that the sum of the ringer equivalence numbers of all the devices does not exceed 5.

  • Page 71: Emc And Safety Compliance

    A Regulatory Compliance EMC and Safety Compliance The CE mark is affixed to the enclosed MultiTech product to confirm compliance with the following European Community Directives: • Council Directive 89/336/EEC of 3 May 1989 on the approximation of the laws of Member States relating to electromagnetic compatibility;...
  • Page 72 MultiModemDSVD User Guide...

  • Page 73: Appendix B: Technical Specifications

    B Technical Specifications Appendix B: Technical Specifications Your MultiModemDSVD modem meets the following specifications: Trade Name MultiModemDSVD™ Model Number MT5600DSVD 2 Server-to-Client K56flex or V.90 speeds when accessing an ISP type K56flex or V.90 server (actual speed depends on server capabilities...
  • Page 74 MultiModemDSVD User Guide Data Modulation FSK at 300 bps, PSK at 1200 bps, QAM at 2400, 4800, and 9600 bps (non-trellis), QAM with trellis-coded modulation (TCM) at 9600, 12,000, 14,400, 16,800, 19,200, 21,600, 24,000, 26,400, 28,800, 31,200, 33,600, and 56,000 bps Fax Modulation V.21 CH2 FSK at 300 bps (half duplex)

  • Page 75: B Technical Specifications

    B Technical Specifications Voice Compression PCM 128, 8000 Hz, or IMA ADPCM, 8000 Hz, (selectable and Sampling Rate via #V commands). Note that your computer system should have a processing speed of at least 75 MHz to take full ad- vantage of the telephony features of this product.
  • Page 76 MultiModemDSVD User Guide...

  • Page 77: Appendix C: Loopback Tests

    C Loopback Tests Appendix C: Loopback Tests Introduction Each time you turn on your modem, it performs an automatic self-test to ensure proper operation. Your modem also has three diagnostic tests: local analog loop- back, remote digital loopback, and local digital loopback. These ITU-T V.54 loop- back tests isolate telephone circuit and transmission problems.

  • Page 78: Remote Digital Loopback Test (V.54 Loop 2)

    MultiModemDSVD User Guide 2. Type AT&T1 and press ENTER. This places your modem in analog loopback mode in the originate mode. A CONNECT message should appear on your dis- play. The modem is now out of command mode and in a pseudo-online mode.

  • Page 79: Local Digital Loopback Test (V.54 Loop 2)

    C Loopback Tests 4. Type the escape sequence +++AT and press ENTER to bring your modem into online command mode. 5. Type AT&T6 and press ENTER. The local modem responds to this command by transmitting an unscrambled marking signal, which causes the remote modem to place itself in digital loopback mode.
  • Page 80 MultiModemDSVD User Guide 4. Type AT&T3 and press ENTER. Once you receive an OK message from your modem (if responses are enabled), your modem is placed in digital loopback mode. 5. Have someone enter data from the remote keyboard. For this test, typing multi- ple uppercase U characters is a good way to send an alternating test pattern of binary ones and zeros.

  • Page 81: Appendix D: Warranty, Service, And Technical Support

    D Warranty, Service, and Technical Support Appendix D: Warranty, Service, and Technical Support Limited Warranty Multi-Tech Systems, Inc. (MTS) warrants that this product will be free from defects in material or workmanship for a period of ten years from the date of purchase or, if date of purchase is not provided, ten years from the date of shipment (limited to customers in the U.S., Canada, Mexico, and United Kingdom).

  • Page 82: Technical Support

    MultiModemDSVD User Guide Technical Support Multi-Tech Systems has an excellent staff of technical support personnel available to help you get the most out of your Multi-Tech product. If you have any questions about the operation of this unit, please call 800 972-2439 (USA and Canada) or 612 785-3500 (international and local).

  • Page 83: Multi-Tech On The Internet

    9. To exit the BBS, type G and press ENTER. Multi-Tech on the Internet Multi-Tech is a commercial provider on the Internet. Multi-Tech has a Web site at http://www.multitech.com and an ftp site at ftp://ftp.multitech.com To receive support via e-mail, contact Technical Support at...

  • Page 84: Ordering Modem Accessories

    MultiModemDSVD User Guide Ordering Modem Accessories SupplyNet, Inc., can supply you with replacement transformers, cables and connec- tors for select Multi-Tech products. You can place an order with SupplyNet via mail, phone, fax or the Internet at the following addresses: Mail: SupplyNet, Inc.

  • Page 85: Appendix E: Upgrading The Modem

    E Upgrading the Modem Appendix E: Upgrading the Modem Introduction Your modem is controlled by semi-permanent software, called firmware, that is stored in flash memory. Firmware is nonvolatile; that is, it remains stored in memo- ry when the modem is turned off. However, it can be changed by either the manu- facturer or the user as bugs are fixed or new features are added.

  • Page 86: Step 2: Identify The Current Firmware Version

    MultiModemDSVD User Guide Step 2: Identify the Current Firmware Version Identify the current version of the firmware at the Multi-Tech Web site or BBS. If your modem already has the current firmware, there is no need to update it. Multi-Tech Web Site 1.

  • Page 87: Step 3: Download The Upgrade File

    E Upgrading the Modem 12. If the version number is larger than the firmware version number found in “Step 1: Identify the Modem Firmware,” your modem has an older firmware version. Continue with “Step 3: Download the Upgrade File.” Step 3: Download the Upgrade File Multi-Tech Web Site 1.

  • Page 88: Step 6: Upgrade The Modem's Firmware

    MultiModemDSVD User Guide 2. In the program’s terminal window, type AT&V and press ENTER to list your modem’s current parameters. 3. Record your parameters by saving the screens and sending them to your printer. 4. Close the terminal program. Step 6: Upgrade the Modem’s Firmware Before you begin the following procedure, refer to the README.TXT file extracted...

  • Page 89: Step 7: Restore Your Parameters

    E Upgrading the Modem Step 7: Restore Your Parameters Your modem’s firmware update is complete. If required, you can now use your ter- minal program to reprogram your modem parameters using the information you recorded in Step 5.
  • Page 90 MultiModemDSVD User Guide...

  • Page 91: Index

    Index...
  • Page 92 MultiModemDSVD User Guide Symbols definition 26 configuration descriptions 27–41 selecting reset configuration 35 µ-Law selection 36, 40 DS= 28 storing 10, 35 E 28 configuring software 10 format 26 Connect Message Control com- H 28 mand 30 A-Law selection 36, 40 I 28 connect messages 11, 48–50...
  • Page 93 Index error control, setting 46 line feed character 44 Pulse Dialing command 29 error correction 3, 70, 71 LINE jack 21 Error Correction Mode Selection Line Quality Monitor command 35 command 38 Line Signal Level command 36 rate, maximum data 46 escape character 44 Line Signal Quality command 36 Read Register Value command 30...
  • Page 94 MultiModemDSVD User Guide S9 44 telephone voice commands 42–43 setting 30 connecting a 8, 22 voice operation 16 safety 6 line 21, 54 Select Maximum MNP Block Size number, storing 35 command 36 terminal mode 53, 70 wait time for dial tone 44...

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