1-21
W0
CONNECT result code reports DTE spee
Disable protocol result codes.
(see also the “Result Code Options Table”)
W1
CONNECT result code reports DTE spee
Enable protocol result codes.
W2 *
CONNECT result code reports DCE spee
Enable protocol result codes.
Xn
Select result codes/call progress options
X0
Display CONNECT or “1” for all speeds.
Ignore dial tone and busy tone detection.
X1
Display connect message and the modem
data rate, and an indication of the modem
error correction and data compression.
Ignore dial tone and busy tone detection.
X2
Display connect message and the modem
data rate, and an indication of the modem
error correction and data compression.
Check dial tone before proceeding dialing,
ignore busy tone detection.
X3
Display connect message and the modem
data rate, and an indication of the modem
error correction and data compression.
Ignore dial tone before proceeding dialing,
check busy tone after making dialing.
X4 *
Display connect message and the modem
data rate, and an indication of the modem
error correction and data compression.
Check dial tone and busy tone.
X5
Same as X4.
X6
Same as X4.
X7
Display CONNECT or “1” for all speeds.
Check dial tone and busy tone.
Zn
Recall stored profile
Z0
Reset and recall user profile 0. Either Z0 or
Z1 restores the same single profile.
*
Manufacturer default
Extended “AT&” (Ampersand) Command Set
Command
Options
Function & Description
&Cn
Data carrier detect option
&C0
State of carrier from remote modem is
ignored. DCD circuit is always on
&C1 *
DCD turns on when the remote modem’s
carrier signal is detected, and off when the
carrier signal is not detected.
&Dn
Data Terminal Ready (DTR) option.
&D0
DTR ignored
