7
X4
All responses and dial tone and
busy signal detection
Z_
Z0
Reset and retrieve active profile 0
3.4 Extended AT Commands
&C_
&C0
Force Carrier Detect Signal High (ON)
&C1
Turn on CD when remote carrier is
present
&D_
&D0
Modem ignores the DTR signal
&D1
Modem returns to Command Mode after
DTR toggle
&D2
Modem hangs up, returns to the
Command Mode after DTR toggle
&F_
&F
Recall factory default configuration
&G_
&G0
Guard tone disabled
&G1
Guard tone disabled
&G2
1800 Hz guard tone
&P_
&P1
Select 33 ratio M/B at 10pps
&P3
Same as &P1 setting but at 20 pulses per
second
& V
&V0
Displays Active and Stored Profiles
&W_
&W0
Stores the active profile as Profile 0
%E_
%E0
Disable auto-retrain
%E1
Enable auto-retrain
+MS?
Displays the current Select Modulation
settings
+MS=?
Displays a list of supported Select
Modulation options
+MS=a,b,c,d,e,f
Select modulation. a,b,c,d,e,f
d e f a u l t = V . 9 0 , 1 , 7 5 , 3 3 6 0 0 ,
75,56000.Parameter¡§a¡¨specifies the
modulation protocol desired where:
B 1 0 3 = B e l l 1 0 3 , B 2 1 2 = B e l l 2 1 2 ,
V21=V.21,V22=V.22,V22B=V.22bis,
V23C=V.23,V32=V.32,V32B=V.32bis,
V34=V.34,K56FLEX=K56FLEX,V.90=V.90.
Parameter¡§b¡¨specifies automode
operations where=automode disabled,
1=automomod enabled.Parameter
¡§c¡¨specifies the minimum connected
speed of the transmit direction.
Parameter¡§d¡¨specifies the maximum
connected speed of the transmit
