Multi-Tech Systems MT5634MSV manual There Are Garbage4 Characters on the Monitor

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6 Solving Problems

4If 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.

There Are Garbage4 Characters on the Monitor

Your computer and the remote computer might be set to different word lengths, stop bits, or parities. If you have connected at 8-N-1, try changing to 7-E-1, or vice-versa, using your communications software.

You might be experiencing line noise. Enable error correction, if it is disabled, or

4hang up and call again; you might get a better connection the second time.

At speeds above 2400 bps, the remote modem might not use the same transmis- sion or error correction standards as your modem. Try connecting at a slower speed or disabling error correction. (With no error correction, however, line noise

4can cause garbage characters.)

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.

The Modem4Doesn’t Work with Caller ID

Caller ID information is transmitted between the first and second rings, so if autoanswer is turned off (S0=0) or if the modem is set to answer after only one ring (S0=1), the modem will not receive Caller ID information. Check your ini- tialization string, and if necessary change it to set the modem to answer after the

4second ring (S0=2).

Make sure that you have Caller ID service from your telephone company.

Fax and Data4Software Can’t Run at the Same Time

Communications devices can be accessed by only one application at a time. Un- der DOS or Windows 3.1x, you can run either your fax software or your datacomm software, but not both at the same time, unless you have a special communications device management application. In Windows 95, you can have data and fax communication applications open at the same time, but they cannot use the same modem at the same time.

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Contents User Guide FCC Part User Guide Record of Revisions MessageSaver Operation IntroductionQuick Start Remote Configuration AT Commands, S-Registers & Result CodesSolving Problems PhoneToolsAppendix C Loopback Tests Appendix a Regulatory ComplianceAppendix E Upgrade Procedures Appendix D Warranty, Service, and Technical SupportIntroduction Introduction Product Description How to Get a Copy of Your User Guide Related Manuals What Is in Your Modem Package?MessageSaver User Guide Quick Start Introduction Safety WarningsWhat You Will Need We supplyOpening the Modem Mount the FeetSelect Stereo or Mono Speaker Location of speaker jumper Changing the Speaker JumperLine Connection Connect the Modem to Your SystemRS232 Connection Power-On Test Power ConnectionPhone Connection Microphone ConnectionRemoving Your Old Modem from Windows Install the Modem in WindowsAdding the Modem to Windows Install and Configure Your Software Call the Multi-Tech BBS Windows HyperTerminal Windows Terminal Microsoft Fax Send a FaxReferences Select Start Programs Accessories Fax Compose new faxMessageSaver User Guide MessageSaver Operation Independent Mode Functions PhoneTools FeaturesMessageSaver Operation Recording and Downloading an AnnouncementIndependent Mode Configuration Dialog Box Independent Mode Operation in PhoneToolsIndependent Mode Control dialog box Independent Mode Control Dialog BoxControl Buttons Independent Mode Operation Using the Front PanelIndicator Lights Answering a Call with the Speakerphone Adjusting Speaker VolumePlaying Voice Messages Stopping the Play of Voice MessagesControlling the MessageSaver Remotely Remote ControlUsing the MessageSaver in Speakerphone Mode Remote Control Keys Activating Independent Mode RemotelyAT Commands Registers Result Codes AT Commands AT Command Summary DS=y Dial Stored Telephone Number Echo Command Mode CharactersEcho Online Data Characters Hook ControlMonitor Speaker Mode Monitor Speaker VolumeReturn Online to Data Mode Modulation HandshakeSet Register Value Result Codes Enable/DisableSr? Read Register Value Tone DialingLong Space Disconnect Modem ResetAuto Retrain Data Carrier Detect DCD ControlCommunications Mode Load Factory SettingsAsynchronous Communications Mode 22bis Guard Tone ControlDisplay Current Settings Test CommandsStore Current Configuration Select Stored Configuration for Hard Reset\Bn Transmit Break \An\Gn Modem Port Flow Control \Jn Data Buffer Control\Qn Flow Control Selection \Nn Error Correction Mode Selection\Tn Inactivity Timer \Vn Protocol Result Code DCn AT Command Control\Xn XON/XOFF Pass-Through Data Calling Tone#Sx Enter Setup Password Command +ES=n Enable Synchronous Buffered Mode#S=x Store Setup Password Command +++ATCR Escape SequenceRegisters Register Unit Range Default DescriptionRegister Unit Range Default Description S37 Register Unit Range Default Description S42 Terse Verbose Description Result CodesBlacklist Full Remote Configuration Changing the Setup Password Basic ProcedureSetup Changing the Remote Escape Character MessageSaver User Guide Solving Problems None of the Indicators Light Modem Does Not Respond to Commands Modem Dials But Cannot Connect Modem4Disconnects While Online Data Is Being Lost Modem4Cannot Connect When AnsweringFile Transfer4Is Slower Than It Should Be Fax and Data4Software Can’t Run at the Same Time There Are Garbage4 Characters on the MonitorModem4Doesn’t Work with Caller ID MessageSaver User Guide PhoneTools Installing PhoneTools Making a Phone Call Using PhoneTools’ Status BarPhone Module Making Quick Dial Entries Using the SpeakerphoneActivating and Deactivating Answerphone Setting up AnswerphoneVoice Module Setting Up the Answer/Record Mode Setting Up the Answer Only ModeListening to Received Messages in PhoneTools Listening to Received Messages from a Remote PhoneChanging Recording Parameters Recording an AnnouncementHow Does It Work? Independent ModeConfiguring and Controlling Independent Mode Operation Selecting an Announcement Activating and Configuring Independent ModeManaging Stored Documents Inbox Independent ModeFaxing a Document from a Windows Application Fax ModuleSending a Cover Faxing a File Directly from PhoneToolsViewing and Printing Faxes Adding a Logo to the CoverInbox Management Inbox and Outbox ManagementOutbox Management Creating New Records Phone BookImporting Existing Records Selecting RecordsUsing the Phone Book for Dialing Starting a Modem Connection Terminal Emulation ModuleCapturing Information to Disk Uploading Files to a Remote SystemSending a Data File Automatically Data File TransferReceiving a Data File Automatically Appendixes FCC Part 68 Telecom Appendix a Regulatory ComplianceRegulatory Compliance Fax Branding StatementCommission Decision CTR21 Canadian Limitations NoticeInternational Modem Restrictions New Zealand Telecom Warning Notice EMC and Safety ComplianceMessageSaver User Guide Appendix B Technical Specifications Carrier Frequencies Frequency Stability MessageSaver User Guide Local Analog Loopback Test V.54 Loop Test procedureFigure C-2. Remote digital loopback test Remote Digital Loopback Test V.54 LoopFigure C-3. Local digital loopback test Local Digital Loopback Test V.54 LoopMessageSaver User Guide Service Limited WarrantyMulti-Tech BBS Online Warranty RegistrationTechnical Support About the Internet SupplyNet Online Ordering Instructions Modem AccessoriesAbout the Multi-Tech Fax-Back Service Identify the Modem Firmware Upgrade OverviewMulti-Tech BBS Identify the Current Firmware VersionMulti-Tech Web Site Clear Your Stored Paramenters Download the Upgrade FileExtract the Upgrade Files Restore Your Parameters Upgrade the Modem’s FirmwareIndex Symbols Index 106