User's Manual

20
Command Function Command Function
responses/blind dialing
X2 Same as X1 plus dial tone
detection
X3 Same as X1 plus busy signal
detection/blind dialing
X4 All responses and dial tone
and busy signal detection
Y0 Long space disconnect
disabled
Y1 Long space disconnect
enabled
Z0 Reset and recall user profile0
Z1 Reset and recall user profile1
6.4 Extended AT Commands
&C0 Carrier Detect (CD) always on
&C1 Turn on CD when remote
carrier is present
&D0 DTR signal ignored
&D1 Modem returns to Command
Mode after DTR toggle
&D2 Modem hangs up and
returns to the Command
Mode after DTR toggle
&D3 Modem resets after DTR toggle
&F0 Load factory default
configuration 0
&F1 Load factory default
configuration 1
&G0 Guard tone disabled
&G1 Guard tone disabled
&G2 1800 Hz guard tone enabled
&M0 Asynchronous operation
&M1* Synchronous mode 1
operation
&M2* Synchronous mode 2
operation
&M3* Synchronous mode 3
operation
&P0 US pulse dial off-hook-to-
on-hook ratio (39%-61%
make/break ratio @ 10 pps)
&P1 33%-67% make/break ratio @
10 pps
&P2 39%-61% make/break ratio @
20 pps
&P3 33%-67% make/break ratio @
20 pps
&R0* CTS track RTS in sync. mode
&R1* CTS force ON in sync. mode
&S0 DSR always ON
&S1 DSR is off in command mode,
on in on-line mode
&T0 Terminate test in progress
&T1 Run Local Analog Loopback
&T3 Run Local Digital Loopback
&T4 Grant Remote Digital
Loopback Test request by
remote modem
&T5 Deny Remote Digital
Loopback Test request
&T6 Run Remote Digital Loopback
Test
&T7 Run Remote Digital Loopback
Test with Self-Test
&T8 Run Local Analog Loopback
Test with Self-Test
&V View Active & Stored Profiles
&W0 Store active profile as Profile 0
&W1 Store active profile as Profile 1
&X0* Modem generate sync.
clock
&X1* DTE generate sync. clock
&X2* Modem derive sync clock from
remote modem
&Y0 Select Profile 0 upon Power
on or reset
&Y1 Select Profile 1 upon Power on
or reset
&Z n = x Store phone number x into non-
volatile RAM, n =0-3
%E0 Line quality monitor and auto-
retrain disabled
%E1 Line quality monitor and auto-