Zoom 27575 quick start Solving Common Problems, General Troubleshooting

Chapter 3: Solving Common Problems

Note: If your modem is not working, please read this chapter and Chapter 2: Using the Faxmodem on page 12 carefully.

For installation problems, refer to Chapter 1: Setting Up Your USB Faxmodem on page 6.

This chapter covers three categories: general trouble- shooting, dial troubleshooting, and on-line troubleshoot- ing.

General Troubleshooting

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

Solution: The most common problem with modems is that the communications software is not con- figured for the same COM port as the modem or that the USB faxmodem is not selected under the software.

If you have a PC, check which COM port the modem is using and make sure that the soft- ware’s COM port setting matches the modem’s COM port setting. From the Windows Toolbar, under Settings/Control Panel/Modems/Diagnostics, click on the COM Port for your modem, then click on More info. If Windows displays the modem’s ATI re- sponses, the modem is working.

If you have a Mac, make sure that the USB faxmodem is selected under Settings in the application software.

Problem: The modem speaker volume is too low or too high.