User`s manual
AT Command Reference Manual
7-14 1048
#CLS - Select Data, Fax, or Voice/Audio
This command selects Data, Fax, or Voice/Audio Mode from operation in any mode.
Parameters: n = 0, 1, 2, or 8
Default: 0
Result Codes:
OK If n = 0, 1, 2, or 8.
ERROR Otherwise.
Command options:
#CLS? Returns the current setting (0, 1, 2, or 8) of the #CLS command as an ASCII decimal value in
result code format.
#CLS=? Returns the message, “0, 1, 2, or 8”.
#CLS=0 Data. This is similar to setting +FCLASS=0, and instructs the modem to act like a data modem on
subsequent answer or originate operations.
When a disconnect or inactivity time out in the non-autobaud mode is detected, the modem
automatically sets the #CLS setting to 0 and hangs up. This ensures that the modem is always in
a known state despite disorderly DTE behavior.
#CLS=1 Class 1 fax. This is similar to setting +FCLASS=1, and instructs the modem to be a Class 1 fax
modem. Once this is set, either the +FAA or the +FAE command can be used to force
subsequent answers to be Class 1 adaptive answers.
#CLS=2 Class 2 fax. This is similar to setting +FCLASS=2, and instructs the modem to be a Class 2 fax
modem. Once this is set, the +FAA command can be used to force subsequent answers to be
Class 2 adaptive answers.
#CLS=8 Voice/Audio Mode. This is the main setting the DTE uses to effect directed or adaptive answer or
originate sequences involving voice modes. All telephone calls initialized by #CLS=8 result (after
answer or successful call progress) in the modem in Online Voice Command Mode.
#MDL? - Identify Model
This command requests the model number or name of the modem.
Command option:
#MDL? - RCV144ACi (Example)
#MFR? - Identify Manufacturer
This command requests the modem manufacturer.
Command option:
#MFR? - ROCKWELL
#REV? - Identify Revision Level
This command requests the revision level of the modem.
Command option:
#REV? - XXXX-XXXX-XXX YYY (Those places occupied by “X"'s represent the part number, while those places
occupied by `Y"'s represent the revision number. The values are determined at
time of production.)