User`s guide

Basic AT Commands Appendix D - Fax/Modem Information
155
X2 Same as X1 plus dial tone detection
X3 Same as X1 plus busy detection/blind dialin
g
X4 All responses and dial tone and busy si
g
nal detection
Y_ Y0 Modem does not send or respond to break si
g
nals
Z_ Z0 Reset and retrieve active profile 0
&C_ &C0 Force Carrier Detect Si
g
nal Hi
g
h (ON)
&C1 Turn on CD when remote carrier is present
&D_ &D0 Modem i
g
nore the DTR si
g
nal
&D1 Modem return to Command Mode after DTR to
gg
le
&D2 Modem han
g
up, returns to the Command Mode after
DTR to
gg
le
&D3 Reset modem after DTR to
gg
le
&F_ &F Recall factory default confi
g
uration
&G_ &G0 Guard tone disabled
&G1 550Hz
g
uard tone
&G2 1800 Hz
g
uard tone
&K_ &K0 Disable flow control
&K3 Enable RTS/CTS hardware flow control
&K4 Enable XON/XOFF software flow control
&M_ &M0 Asynchronous operation
&S_ &S0 Force DSR Si
g
nal Hi
g
h (ON)
&S1 DSR off in command mode, on in on-line mode
&T_ &T0 End test in pro
g
ress
&T1 Perform Local Analo
g
Loopback Test
&T3 Perform Local Di
g
ital Loopback Test
&V &V Display Active and Stored Profiles
&W &W0 Store the active profile as Profile 0
&Y_ &Y0 Confi
g
uration Profile 0 active upon Power on or reset.
&Zn=x N=0-3 Store phone number x into non-volatile RAM
&K_ &K0 Disable flow control
&K3 Enable RTS/CTS hardware flow control
&K4 Enable XON/XOFF software flow control
&M_ &M0 Asynchronous operation
Prefix Suffix Function
TABLE 15. Basic AT Commands