Multitech MT5600BLV.90, MT5600BAV.92, MT5600BAV.90 manual Modem Disconnects While Online

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Chapter 7 - Troubleshooting

·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,. Note the comma, which inserts a pause before the number is dialed. By inserting 9, into the dial prefix, you do not have to include it in each directory entry.

To change the dial prefix in Windows 95 HyperTerminal, select Connect from the Call menu, click Dialing Properties, and type 9 in the local and long distance boxes in How I dial from this location.

·If the modem reports NO ANSWER, the other system has failed to go off-hook, or you might have dialed a wrong number. Check the number.

·If the modem reports NO CARRIER, the phone was answered at the other end, but no connection was made. You might have dialed a wrong number, and a person answered instead of a computer, or you might have dialed the correct number but the other computer or software was turned off or faulty. Check the number and try again, or try calling another system to make sure your modem is working. Also, try calling the number on your telephone. If you hear harsh sounds, then another modem is answering the call, and the modems might be having problems negotiating because of modem incompatibilities or line noise. Try connecting at a lower speed.

The Modem Disconnects While Online

·If you have Call Waiting on the same phone line as your modem, it can interrupt your connection when someone tries to call you. If you have Call Waiting, disable it before each call. In most telephone areas in North America, 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 Windows Terminal, select Settings Modem Commands. To change it in HyperTerminal, select Connect from the Call menu, 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 might have had a poor connection because of line conditions or the problem might have originated on the other end of the line. Try again.

·If you were online, it might 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.

MT5600BA/BL Series User Guide

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Contents MT5600BA/BL Series MT5600BA-V.92 MT5600BA-V.90 MT5600BL-V.90Revision Date Description Table of Contents Contents Product Description Description and FeaturesFeatures Safety Warnings Installation Connect the Modem to Your SystemConnect the Phone to the Modem Optional Install the Modem Driver Removing an Old Modem DriverCountry Code Configuration MT5600BA-V.92 OnlyInstall Phone Tools LED Indicators Using the Front PanelModem Configuration Menu Structure Liquid Crystal Display LCDOption Selection Menu Overview TwigsStatus Trunk Basic Options Trunk From previous Advanced Options Trunk Advanced Options Trunk Remote Configuration Options Trunk Diagnostic Options TrunkPhone Number Memory Options Trunk Caller ID Options TrunkMenu Options StatusBasic Options Using the Front Panel Advanced Options Using the Front Panel Phone Number Memory Options Remote Configuration OptionsDiagnostic Options Caller ID Options Two-Wire Setup Leased-Line OperationFour-Wire Setup Dial Backup and Leased-Line Restoral Dial Backup and Leased Line Restoral SetupLeased Line Operation Remote Configuration Changing the Remote Escape Character Setup Procedures Callback SecurityAssigning Callback Passwords Front Panel MethodAssigning Callback Phone Numbers Calling Procedure Callback Security Commands Callback Enable/DisableCallback Assignments Form Troubleshooting None of the Indicators LightModem Does Not Respond to Commands Modem Cannot Connect When Dialing Modem Disconnects While Online Data Is Being Lost Modem Cannot Connect When AnsweringFile Transfer Is Slower Than It Should Be Fax and Data Software Can’t Run at the Same Time There Are Garbage Characters on the MonitorModem Doesn’t Work with Caller ID Appendix a Regulatory Compliance FCC Part 68 TelecomFax Branding Statement Canadian Limitations NoticeNew Zealand Telecom Warning Notice EMC, Safety, and R&TTE Directive ComplianceInternational Modem Restrictions South African Notice Appendix B Technical Specifications Modem CompatibilityTransmission Level Appendix C Warranty, Service, Technical Support Multi-Tech Systems, Inc. Warranty & Repairs PoliciesOnline Warranty Registration Service Repair Procedures for International DistributorsReplacement Parts International Customers outside U.S.A. and CanadaTechnical Support Internet SitesUpgrade Overview Appendix D Upgrading the FirmwareIntroduction Identify the Modem FirmwareIdentify the Current Firmware Version Download the Upgrade FileExtract the Upgrade Files Clear Your Stored Paramenters Upgrade the Modem’s FirmwareRestore Your Parameters Appendix E Installing a Modem Under Linux Using the Modem to Call the Internet Appendix F Pin Descriptions RS-232 Pin DescriptionsRS-232 Cable Pinouts RDLLeased Line Pinouts Fig. F-3. Macintosh cableIndex Index