Dn Data Terminal Ready (Dtr) Control; F Load Factory Settings; Gn V.22Bis Guard Tone Control - Toshiba V.90 User Manual

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AT Commands
AT command formats
&Dn Data Terminal Ready (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
&D1 If the DTR signal is not detected while in online data
&D2 If the DTR signal is not detected while in online data
&D3 Reset the modem on the on-to-off DTR transition.
Result Codes:
OK
ERROR Otherwise
&F 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
values.
&F Recall factory setting as active configuration.
&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
and treats it as always on. This should only be used if
your communication software does not provide DTR
to the modem.
mode, the modem enters command mode, issues an
OK result code, and remains connected.
mode, the modem disconnects (default).
n=0,1,2,3