IBM Aptiva Series Handbook page 125

Table 3: Modem problems (Continued)
If the problem is:
Make sure that the correct terminal emulation
mode is being used in the software. Refer to the
manual that came with the software.
Make sure that the data speed is not faster than
your computer's capability.
Note:
If any of these problems continue after taking the actions listed, see "Chapter 2: HelpWare support and services" on page 2-1 for
information on obtaining service.
Here's what to do:
1. Make sure that the Call Waiting feature is turned off.
2. Make sure that the RTS/CTS hardware flow control is enabled (do not use
XON/XOFF software flow control).
3. Make sure that the data speed is not faster than your computer's capability.
1. Make sure that the correct modem type is selected in the voice/fax software.
Use "Lucent" or "Hayes Compatible". Do not select "Cirrus Logic" or "Rockwell".
2. Make sure that your computer is fast enough to handle voice operations (at
least 38.4Kbps DTE speed). Voice operations are processor intensive and
require a Pentium 100MHz or faster processor when running under
Windows95.
Solving hardware and software problems 9-15