AT Commands F-21
AT Commands
NOTE
For the modem to achieve the highest possible throughput available, set the
modem port speed by typing AT%G1%Bn (where n equals the desired speed).
&G
n Guard Tone
&G0
Disables guard tone.
&G1
Sets guard tone on the answering modem to 550 Hz.
&G2
Sets guard tone on the answering modem to 1800 Hz.
NOTE
Outside the United States and Canada, some phone systems require a modem to
send a guard tone after an answer tone.
V.34 (26400 bps)
at 26400 bps
%B26400
V.34 (28800 bps)
at 28800 bps
%B28800
Protocol
When %F0 is set:
Issue %G0:
Issue %G1:
