Bis Command And Response Definitions; Dial Command - Black Box 325 User Manual

MODEM 325 AND MODEM 325 CARD
8.4 V.25 bis Command and Response Definitions
The following sections describe the commands used with the V.25 bis autodialer and explain the
responses received when each command is executed.
8.4.1 D C
IAL OMMAND
The dial command is CRN followed by the number to be dialed (
dial parameters, excluding the CRN command and any leading spaces.
Responses:
VAL Valid command received. Transmitted on receiving an error-free command with no
transmission error such as a parity error. This confirmation is sent before the command
is executed.
INVCU Invalid command—command unknown.
Example:
TRN (205)-555-0124
INVMS Invalid command—message syntax error.
Examples:
CRN;(205)-555-0124
CRN; (semicolon invalid)
INVPS Invalid command—parameter syntax error.
Examples:
CRN (205)-555-0124
CRN (205)-555;0124
CRN
INVPV Invalid command—parameter value error.
Examples:
CRN (205)-555-012Q
CRN - - - -
CFIET Call failure—reorder or busy.
CFIRT Call failure—timeout occurred.
CFIDT Call failure—no dial tone.
INC Incoming ring detected.
122
(CRN ... )
NN N
. The modem accepts up to 40
nn...n)