Owner's manual

AT Commands for CX930xx Modem Reference Manual
3-80 Conexant 102752B
%TT1C - V.23 forward channel space symbol
Command syntax:
%TT1C
%TT1D - V.22 answer signalling (guard tone: 1800Hz, 550Hz, none) at 600 bps
Command syntax:
%TT1D<guard tone>
<guard tone>
0 none
1 550 Hz
2 1800 Hz
V.32 and V.32bis Spectrum
%TT2x V.32,V32bis
%TT20 - V.32bis TCM 14400 bps (Answer Mode, Originate Mode)
Command syntax:
%TT20<mode>
<mode>
A Answer
O Originate
%TT21 - V.32bis TCM 12000 bps (Answer Mode, Originate Mode)
Command syntax:
%TT21<mode>
<mode>
A Answer
O Originate
%TT22 - V.32 TCM 9600 bps (Answer Mode, Originate Mode)
Command syntax:
%TT22<mode>
<mode>
A Answer
O Originate
%TT23 - V.32 9600 bps (Answer Mode, Originate Mode)
Command syntax:
%TT23<mode>
<mode>
A Answer
O Originate