Zoom 27575 - Manual (Page 16)

16 Quick Start and Reference Guide
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.