Multi-Tech Systems MT3334ZDXV Modem Disconnects While Online, Modem Cannot Connect When Answering

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MT3334ZDX/V Owner's Manual

The Modem Disconnects While Online

If you have call waiting on the same phone line as your modem, it may interrupt your connection when someone tries to call you. If you have call waiting, disable it before each call. In most telephone areas, you can disable call waiting by preceding the telephone number with *70 (check with your local telephone company).

You can automatically disable call waiting by including the disabling code in the modem’s dial prefix (e.g., ATDT*70,—note the comma, which inserts a pause before the number is dialed). To change the dial prefix in your communications package, select Setup, Modem; then select the modem type you are using, and type the new prefix in the Dial Prefix box. To change the dial prefix in Windows Terminal, select Settings, Modem Commands. To change it in Windows 95 HyperTerminal, select Call, Connect from the menu bar, click Dialing Properties, check This Location has Call Waiting, and select the correct code for your phone service.

If you have extension phones on the same line as your modem, you or someone else can interrupt the connection by picking up another phone. If this is a frequent problem, disconnect the extension phones before using the modem, or install another phone line especially for the modem.

Check for loose connections between the modem and the computer, the telephone jack, and AC power.

You may have had a poor connection because of line conditions or the problem may have originated on the other end of the line. Try again.

If you were online with a BBS, it may have hung up on you because of lack of activity on your part or because you exceeded your time limit for the day. Try again.

The Modem Cannot Connect When Answering

Auto-answer may be disabled. Turn on auto-answer in your datacomm program or send the command ATS0=1 to your modem in terminal mode.

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Contents Page Patents Revision DescriptionContents Index Introduction and Description Requirements ComputerSerial Cable Telephone LineProduct Features Communications SoftwareData Installation and Connection About this ManualFax Voice Model MT3334ZDXV onlyAT Commands, S-Registers and Result Codes Testing Your ModemService, Warranty & Technical Support AppendicesInstallation Introduction Safety WarningsInstallation Process Page MultiModemZDX Connections LED Indicators Front PanelInstallation Is Your MultiModemZDX Ready for Use? Operating Your MultiModemZDX Simple OperationsRemote Configuration Software Configuration AT&FcrMultiModemZDX Configuration Confirmation Hardware/Software ConfirmationTroubleshooting None of the LEDs Light When the Modem Is OnModem Does Not Respond to Commands Installation Modem Dials But Cannot Make Connection Installation Modem Cannot Connect When Answering Modem Disconnects While OnlineSlow File Transfer Losing DataGarbage Characters on the Monitor AT Commands, S-Registers Result Codes Command Summary Echo Command Mode Characters DialDial string modifiers Monitor Speaker Volume Monitor Speaker ModeEcho Online Data Characters On-Hook/Off-Hook ControlReturn Online to Data Mode Enable/Disable Result CodesModulation Handshake = n Set Register ValueModem Reset Result Code SelectionLong Space Disconnect Data Carrier Detect DCD ControlLoad Factory Default Settings Communications ModeData Terminal Ready DTR Control 22bis Guard Tone ControlATDS=n \N n Error Correction Mode Selection \K n Set Break Control\V n Protocol Result Code Data Compression ControlModem Baud Rate Serial Port Baud RateRegisters Register Unit Seconds Range 255 Default Description S10S11 S28S30 S35S37 S42S43 S48 S89Delayed Terse Verbose DescriptionModem Testing Local Analog Loopback Test/V.54 Loop Local Analog Loopback TestDigital Loopback Test/V.54 Loop 2 Local/Manual Digital Loopback Test/V.54 Loop 2 Remote/Auto Digital Loopback Testlocal/manualDigital Loopback Test remote/automatic Limited Warranty On-line Warranty Registration Tech SupportRecording Modem Information Service About the Multi-Tech BBS No Longer Available Logging on to the Multi-Tech BBSDownloading a File If you know the file nameReading a Message Leaving a MessageIf you don’t know the file name Multi-Tech Fax-Back Service No Longer Available About CompuServe/Internet No Longer AvailableBulletins Appendix a Technical Specifications Intelligent Features Command BufferData Modulation Fax Modulation2400 & 1200 bps 22bis/V.22Carrier Frequencies Fax 21 CH2 Half DuplexConnectors DiagnosticsIndicators Temperature Power Requirement697 770 852 941 Appendix B Tone Dial FrequenciesAppendices MT3334ZDX, MT3334ZDXV Appendices Canadian Limitations Notice Compliance with Babt Requirements European Low Voltage DirectivePage Compliance with BS6789 .1 and Part Compliance with BS6328 PartModem CE Mark EMC and Safety Compliance Modem Commands Default Permissible RangeRegister Default Permissible Range Australian and New Zealand Modem Warning NoticeNew Zealand Telecom Warning Notice Call Attempts/RetriesIndex Error Correction Page MT5634ZDXv Connections Power Supply Index