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1987-10-03
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Help with the ONLINE/OFFLINE indicator being stuck
Problem: When I start up Qmodem, the Online/Offline indicator in the
status line always says ONLINE? Why?
Answer : The modem is sending a signal back to Qmodem saying that it
is connected to another computer. On Hayes 2400 modems and
clones that use the '&' (ampersand) extended commands, there
is usually a command that controls the CD (carrier detect)
signal. The default mode (unfortunately) is for the CD to
be on all the time. This makes Qmodem think it is ONLINE.
To make things right, send the following command to your
modem:
AT&C1
You will have to check your modem manual to verify this
command in case it is not quite 100% Hayes compatible.
Modems this is know to cure:
Hayes 2400 (Internal/External)
Some modems, as in the case of the Courier HST from
USRobotics has a switch which by default has Carrier forced
true. Switch number 6 is DOWN from the factory and must be
set to UP to work correctly. Running the HST15.SCR will
bring this fact to light.