User`s manual

U.S. Robotics I-modem Command Reference
Querying • Page 12-9
Call rejected The device you tried to call refused to accept the call, and it is not busy or incom-
patible.
Channel type
not imple-
mented
You have reached an unsupported channel type.
Channel
unacceptable
The device you are trying to call cannot negotiate for any channel other than the
one speciÞed in the SETUP message.
Circuit/channel
congestion
There is no appropriate circuit (channel) to handle your call request.
Destination out
of order
The call could not reach the user because of a physical or data link problem.
DISC The remote device sent a V.42 Disconnect frame.
DTR dropped The computer dropped the Data Terminal Ready signal, terminating the call.
Escape code The operator sent the I-modem the +++ escape code.
Extra Stepup The I-modem received an invalid V.42bis (compression) frame.
Facility rejected The network cannot provide the facility you requested.
Disconnect
Reason Explanation