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MT5634/MT9234 Modem; AT Command Set
Command: &Dn Data Terminal Ready (DTR) Control
Values: n = 0, 1, 2, or 3
Default: 2
Description: &D0 Modem ignores true status of DTR signal and responds
as if it is always on.
&D1 If DTR drops while in online data mode, the modem
enters command mode, issues an
OK, and
remains connected.
&D2 If DTR drops while in online data mode, the modem
hangs up. If the signal is not present, the modem will not
answer or dial.
&D3 If DTR drops, modem hangs up and resets as if ATZ
command were issued.
Command: &En XON/XOFF Pacing Control
Values: n = 12 or 13
Default: 12
Description: &E12 Disables XON/XOFF pacing.
&E13 Enables XON/XOFF pacing.
Command: &Fn Load Factory Settings
Values: n = 0
Default: None
Description: &F0 Load factory settings as active configuration.
Note: See also the Z command.
Command: &Gn V.22bis Guard Tone Control
Values: n = 0, 1, or 2
Default: 0
Description: &G0 Disable guard tone.
&G1 Set guard tone to 550 Hz.
&G2 Set guard tone to 1800 Hz.
Note: The &G command is not used in North America.
Command: &Kn Flow Control Selection
Values: n = 0, 3, or 4
Defaults: 3
Description: &K0 Disable flow control.
&K3 Enable CTS/RTS hardware flow control.
&K4 Enable XON/XOFF software flow control.