13
YML545
&C1
: DCD turns on when the remote modem's carrier signal is detected, and off
when the carrier signal is not detected (default).
Result Codes:
OK
n = 0, 1
ERROR Otherwise
&Dn DTR Control
This command interprets how the modem responds to the state of the DTR signal and
changes to the DTR signal.
&D0
: Ignore. The modem ignores the true status of DTR and treats it as always on.
This should only be used if your computer does not provide DTR to the modem.
&D1
: If the DTR signal is not detected while in on-line data mode, the modem enters
command mode, issues OK result code, and remains connected.
&D2
: If the DTR signal is not detected while in on-line data mode, the modem
disconnects (default).
&D3
: Reset modem on the on-to-off DTR transition.
Result Codes
:
OK
n = 0, 1, 2, 3
ERROR Otherwise
&Fn Load Factory Settings
This command loads the configuration stored and programmed at the factory. This operation
replaces all of the command options and the S-register settings in the active configuration
with factory default values.
Note: In voice mode (AT+FCLASS=8), if the AT&F command is placed on the same line as
other commands, the command line is ignored. To load factory settings in voice mode, issue
AT&F by itself.
Result Codes
:
OK n
=
0
ERROR Otherwise
&Gn V.22bis Guard Tone Control
This command determines which guard tone, if any, to transmit while transmitting in the high
band (answer mode). This command is only used in V.22 and V.22bis mode.
&G0
: Guard tone disabled (default).
&G1
: Sets guard tone to 550 Hz.
&G2
: Sets guard tone to 1800 Hz.
Result Codes
:
OK
n = 0, 1, 2
ERROR Otherwise
&Jn Auxiliary Relay option
&J0
: The auxiliary relay is never closed. (Default)
&J1
: NOT SUPPORTED
Result Codes
:
OK n
=
0
ERROR Otherwise
