ITU-T V.25bis Dialing Commands and Responses
D-73910-A2-GN32-40 September 1998
Table D-2 lists V.25bis response messages supported by the 391x Series modems.
Table D-2
V.25bis Response Messages
V.25bis Command
Description
AT Command/
Result Code Equivalent
Call Response
CFI Call Failure Indication BUSY, NO ANSWER, NO
CARRIER, NO DIAL TONE,
ERROR
CNX Call Connecting Indication CONNECT
Command Response
VAL Valid Command OK
INV Invalid Command ERROR