18
AT COMMANDS (continued)
\Qn
Flow Control of DTE
\Q0, \Q5, \Q6
Disables flow control of DTE.
\Q1, \Q4
Enables XON/XOFF flow control.
\Q2, \Q3
Modem raises and lowers CTS to start
and stop flow control.
\Qn
Flow Control of Modem
\Q0, \Q2, \Q4
Disables flow control of modem.
\Q1, \Q5
Enables XON/XOFF flow control.
\Q3, \Q6
Modem starts and stops flow control
based upon state of DTE’s RTS signal.
\Tn
No Data Disconnect Timer
\T0
Disables no data disconnect timer.
\T
n
Sets no data disconnect timer to a value
n from 1 minute to 255 minutes.
\Xn
XON/XOFF Passthrough
\X0
Disables XON/XOFF Passthrough.
\X1
Enables XON/XOFF Passthrough.
%A
n
Sets error control fallback character
n to
an ASCII value from 0 to 127.
%B
n
Sets modulation to V.34 and VF rate to
n
(300, 1200, or 2400 to 33600 in
increments of 2400). Default is
%B33600.
%BL
n
Sets modulation to V.32bis and VF rate to
n (2400 to 19200 in increments of 2400)
%Cn
MNP 5 Data Compression
%C0
Disables MNP5 data compression.
%C1
Enables MNP5 data compression.
F
Clear Error Buffer
F
Clears buffer where information about the
last criticial error is stored.
Hn
V.42 bis Data Compression
H0
Disables V.42 bis data compression.
H1
Enables V.42 bis data compression for
transmit only.
H2
Enables V.42 bis data compression for
receive only.
H3
Enables V.42 bis data compression
in both the transmit and receive
directions.
