Multitech MultiModem MT5634ZPW-PCI Owner's Manual page 35

4. If your legacy software doesn't have the correct modem
initialization string, you must change it. AT&F^M, which
selects the modem's factory default settings, works well for
most connections. (^M is the code for the carriage return
character that sends the string to the modem.) If you need
extra time to make a connection, add S7=60 to the string,
like this: AT&FS7=60^M. For CompuServe, the initialization
string should be AT&F\N0^M. If you use CompuServe's
WinCIM software, change the initialization string to
AT&F\N0\Q1^M for compatibility with WinCIM's software
flow control. Change the error correction string to \N7%C0,
and the data compression string to \N7%C1. If you want the
modem to always answer the phone, add S0=1 to the
initialization string.
*:
To change the modem's default initialization string, type the new
commands in the software's terminal window, adding the command
&W to store the new commands in the modem's nonvolatile memory;
e.g., AT&FS0=1&W. You can then simplify your initialization string to
ATZ^M.
5. If you are using legacy software, select the port the modem
is connected to (normally, COM3).
6. For maximum throughput when using data compression, set
the serial port baud rate, or DTE rate, to 115,200 bps. (In
Windows 95, select Start, Settings, Control Panel, Modems,
Properties.)
7. If your legacy software has an autobaud selection, make
sure it is disabled. Autobaud is for much older modems, and
can cause problems if enabled.
8. If the software allows you to edit the no-connect messages
( NO CARRIER, BUSY, NO ANSWER, NO DIALTONE ),
make sure there is no space between DIAL and TONE in
NO DIALTONE .
MT5634ZPW-PCI
3 AT Commands, S-Registers and Result Codes
35