User`s guide

AT Command Summary (continued)
Command
Description
I
Sr?
Reads value stored in r
Sr=n
Sets register r to n
V0
Returns result codes as numbers
V1
Returns result codes as words
I
X0
Enables basic result codes (0-4)
I
Xl
Enables extended result codes (05, 10)
I
X2
Enables extended result codes (0-6, 10)
X3
Enables extended result codes (0-5, 7, 10)
X4
Enables all result codes
Y0
Disable long space disconnect
I
Y1
Enable long space disconnect
I
Z0
Software reset; recalls user configuration 0
Z1
Software reset; recalls user configuration 1
&C0
DCD signal always on
&C1
DCD signal on when carrier present
I
&D0
Ignore DTR signal
I
&D1
Returns to command mode when an on-to-off DTR
transition occurs
I
&D2
I
Hangs up and returns to command mode when an
on-to-off DTR transition occurs
I
&D3
Resets when an on-to-off DTR transition occurs
I
&F
Loads factory configuration settings
I
&G0
No guard tone in CClTT mode
&G1
550 Hz guard tone in CClTT mode
&G2
1800 Hz guard tone in CClTT mode
&P0
Pulse dial make/break ratio = 39%/61% (U.S.)
&P1
Pulse dial make/break ratio = 33%/67% (U.K.)
Fax/Modem Command Set B-3