Zoom 1120, 2925 quick start General Troubleshooting

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The modem works well when you are not using data compression,

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but the compression features are inoperative.

 

General Troubleshooting

Problem: Your modem seems to install under Windows 95 or 98, but Windows cannot find it later.

Solution: If your computer has a built-in modem on the motherboard, Windows may reinstall it the next time you start up. Consult your computer’s documentation or call your computer’s manu- facturer to get instructions on how to disable the built-in modem.

Problem: The software cannot find the modem and the modem does not respond to AT commands. (The following comment applies to many other problems as well.)

Solution: The most common error with modems is that the communications software is not configured for the same COM port as the modem. Check which COM port the modem is using. Make sure that the software’s COM port setting matches the modem’s COM port setting.

Another problem is that COM port resources may be in use by another device. Make sure that the COM port resources used by the mo- dem are not being used by any other device, such as a soundcard.

Problem: You type an AT command line in a terminal application and press Enter, but your mo- dem fails to execute the command line. Or there was no response after executing a command.

Solution: Be sure you type AT at the beginning of the command line.

Make sure the communications software is con- figured for the same COM port as your modem.

Be sure your modem is not in data mode when you type the command. Use the escape char- acter sequence to switch to terminal mode. (The default escape sequence is to wait at least one

Chapter 4 Problems and Solutions

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Contents Quick Start Contents What You Need to Use Your Faxmodem Make sure that you have received the following itemsYou also need the following Preparing the Computer Installing Your Faxmodem Easier InstallationInstalled, go to step Installing the Faxmodem CardElectrostatic Discharge Protection If your computer does not already have a modemIf you are removing your old modem All running programs and shut down Windows if Before you start the hardware installation, closeYou have not already done so. Then turn your Computer off and unplug it. Don’t plug it backReplace the computer cover Connect the telephone cord. Plug Installing Your Faxmodem Testing Your Faxmodem Installing COMMUNICATE! Lite Installing and Using COMMUNICATE! Lite SoftwareQuick Start and Reference Guide Running COMMUNICATE! Lite Quick Start and Reference Guide Getting Help for COMMUNICATE! Lite Tips for Setting Up Communications Software Using the Faxmodem with Other Software∙ Set auto baud detect to OFF or no Initialization StringsUsing AT Commands Using Audio FeaturesAccessing the Internet Using VideoFor installation problems, see , Installing Your Faxmodem Problems and SolutionsGeneral Troubleshooting Problem The modem speaker volume is too low or too high Voice Troubleshooting Dial TroubleshootingFor low volume For highest volume∙ In the right panel, double-click on the Uni- modem folder On-line TroubleshootingAT +MS=V32B Initialization string AT&F&C1&D2S95=1M Dial prefix ATS95=1D Problem Your modem does not make a connection Problem Data appears garbled on the screen Problem Modem performance seems sluggishAppendix Regulatory Information Industry Canada Attachment FCC Part 15 Emissions StatementCanadian Emissions Statement Important Information

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