IBM Aptiva Handbook page 141

Using a telephone network, a modem allows your computer
to communicate with other computers, fax machines, or
telephones. For information about connecting your modem
to a telephone network, see "Connecting your modem to the
telephone network" on page 4-9.
Before you plug your modem into a
telecommunications system outside the country in
which it was purchased, make sure your modem is
designed to work with that telecommunications
Attention!
system. Otherwise, you could damage your computer.
Read the guidelines in "Safety information" on page vii
before you plug your modem into any
telecommunications system.
Some IBM Aptiva PCs have a modem already installed. If
your computer came with a modem, all you have to do is
connect the modem to a telephone line. (You may also
connect a telephone to the modem if it has two RJ11C
jacks). The system firmware is already configured to load
the modem drivers and software once you have made the
connections.
If your computer does not have a modem but you intend to
install one, see the documentation that came with the
modem for installation instructions and reference
information.
If present, the modem that came with your computer is a
V.90 bps modem. It serves as a communications peripheral
capable of high-speed data transfer and fax. Your modem is
compatible with the following standards:
W V.90
W K56 Flex
W V.34 (33600 bps)
W V.32bis (14400 bps)
W V.32 (9600 bps)
W V.22bis (2400 bps)
W V.22 (1200 bps)
W Bell 212A (1200 bps)
W V.23 (1200/75 bps)
W V.21 (300 bps)
W Bell 103 (300 bps)
W V.17 (14400 bps FAX)
W V.29 (9600 bps FAX)
W V.27ter (4800 bps FAX)
W V.21 channel-2 (300 bps FAX)
W TIA/EIA 578 Class 1 fax command set
W IS-101 voice command set
W V.42bis (data compression)
W V.42 (error correction)
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