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Modem problems
Check some of the same problem notes in the terminal section because most are applicable
to modems. The main problem here is also cable problems and port setup.
Problem
Testing the port
Modem problems
Terminal Server User Guide
Modem problems
Action required
The first thing to ascertain is that you can talk to the modem. Check this
by telneting to the port and attempting to obtain a response from the
modem. The command sequence is:
telnet elroy 10006 (port 6 on unit elroy)
If the modem is Hayes compatible, type the AT command and press the
return key. The modem should respond with OK if the echo settings are
correct at the modem. If you are unable to telnet to the port ensure that
the port is set up correctly and has been killed to save the changes in
configuration. Pay particular attention to flow control, monitor DSR,
monitor DCD, and access field.
Once you have a response from the modem, dial-out to a known site and
check that the correct responses are returned. Remember that modems
can change their bps rate dynamically having made a connection but the
unit is unable to do this. Make sure you've configured the AT string in the
Remote Site Devices - Modem Configuration field. Then kill the port.
Page 180
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