Compaq Armada M300 Series Reference Manual page 146

15-18 Troubleshooting
Solving Modem Problems
Modem does not
connect.
Modem does
not connect at highest
speed.
Continued
The error correction Disable error correction (&K0) and data
feature of your compression (&M0) using AT
modem software is commands.
interfering.
NOTE: To access AT commands and
instructions for using them, select
StartÅCompaq Information
CenterÅ Modem Commands.
Line conditions in Have your telephone line checked by
your area or in the your local telephone service provider.
area you are calling
Try dialing an alternate telephone
may not support
number for the service you are using.
the highest
connect speeds.
Another device on Hang up an extension telephone and
your telephone line disconnect any other devices that may
may be causing be using the same telephone line, then
interference. redial.
The telephone The 56K protocol requires that the
line does not support telephone line contain no more than
56K implementation. one analog-to-digital conversion.
Try connecting from an alternate site.
There is noise on the Use another telephone line.
telephone line.
The 56K protocol of
Change the Hang-up Delay S Register:
an internal modem
At the command line in terminal mode,
will fall back to
type ATS10=150, then press Enter.
lower speeds if the
NOTE: This command causes the
telephone line is too
modem to take longer to disconnect
noisy for a
even if there is no noise on the line.
high-speed
connection.
Continued