On-Line Troubleshooting; The Modem Can Connect To Some Modems, But Not To Others - Zoom ComStar XT SVD Owner's Manual

On-line Troubleshooting

The modem can connect to some modems, but not to
others.
If a remote modem does not respond because of the extended
negotiation process, you may have to disable part or all of the
negotiation process. In the following table, "protocol" means error
correction and data compression. Note that the first two lines in
the table are likely to be the most valuable.
In the command strings shown in the table that follows, the
character after "N" is zero, not the letter "O."
To force...
Negotiate speed and protocol (default
setting)
Negotiate speed only, do not use protocol
Connect at 28800 bps, negotiate protocol
Connect at 28800 bps, no protocol
Connect at 14400 bps, negotiate protocol
Connect at 14400 bps, no protocol
Connect at 9600 bps, negotiate protocol
Connect at 9600 bps, no protocol
Connect at 2400 bps, negotiate protocol
Connect at 2400 bps, no protocol
Connect at 1200 bps, negotiate protocol
Connect at 1200 bps, no protocol
You may find it necessary or helpful to include S95=44 in your
initialization string. This enables the responses CARRIER
(telephone line speed) and PROTOCOL , as well as
Chapter 3 Problems and Solutions
CONNECT (faxmodem-to-computer speed).
NOTE:
Type these
commands and
press Enter
AT &F
AT \N0
AT +MS=11
AT \N0 +MS=11
AT +MS=10
AT \N0 +MS=10
AT +MS=9
AT \N0 +MS=9
AT +MS=2
AT \N0 +MS=2
AT +MS=1
AT \N0 +MS=1
NOTE 1
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