IBM Aptiva Handbook page 121

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Your modem is designed to provide reliable and trouble-free service. However, should you experience any difficulty, the
information in this section can help you determine and resolve the source of the problem. If you cannot resolve the problem after
reading this section, contact your IBM PC HelpCenter for assistance. See "How and when do I contact the IBM PC HelpCenter?"
on page 2-5.
Table 3: Modem problems
If the problem is:
Modem does not respond to commands
Modem dials but does not connect
If any of these problems continue after taking the actions listed, see "Chapter 2: HelpWare support and services" on
Note:
page 2-1 for information on obtaining service.
Here's what to do:
1.Make sure the modem is not configured with a conflicting COM port
and IRQ setting.
2.Make sure the communications software is configured with the correct
COM and IRQ settings (same COM port and IRQ line as the modem).
Your communications software will not be able to send and receive data
if it does not have the correct COM and IRQ settings of the modem.
3.Make sure the modem is properly initialized by the communications
software. The modem can be improperly initialized if you have selected
an incorrect modem type. Select "Hayes Compatible" modem type and
"Rockwell" in your data communications software. Select "Generic
class 1" and "Rockwell" in your fax and voice software, respectively. You
may also be prompted by the software to enter an initialization string.
Use AT&F as your initialization string.
1.Make sure the phone line is working properly. A noisy line will prevent
proper modem operation.
2.Check for busy signal, ringback, or a remote answering system.
Solving hardware and software problems 10-15