SENSATION!  (250-1650)     FAX/Data Modem Commands:     Faxback Doc. # 1355

This is a list of all the AT commands recognized by the modem and the
Sendfax commands recognized by the FAX. With the exception of the A/ command
(repeat last command), each command must be preceded by the letters AT.

Entering a command without a value has the same effect as entering a command
with zero (0) as the value. Both forms are given in the following table.

AT Modem Commands:

COMMAND    DESCRIPTION

A          Go off-hook in ANSWER mode.
A/         Repeat last command.
B, B0      CCITT V.22 mode when at 1200 bps; V.21 when at 300 bps.
B1         Bell 212A mode when at 1200 bps; Bell 103 mode when at 300 bps.
C, C1      Normal TX without carrier.
C1         Normal TX carrier switching (responds OK).
D          Dial number that follows D in command line.
E, E0      Disable character echo to terminal in command mode.
E1         Enable character echo to terminal in command mode.
F1         Disable character echo to terminal while on-line (responds OK).
H, H0      Go on-hook (hang up).
H1         Go off-hook.
I, I0      Display product ID code.
I1         Display checksum on ROM.
I2         Display OK or ERROR on RAM checksum.
I3         Display ROM version and date.
I4         Configuration.
L, L0      Lowest speaker volume.
L1         Low speaker volume.
L2         Medium speaker volume.
L3         High speaker volume.
M, M0      Speaker off.
M1         Speaker on until Carrier Detect.
M2         Speaker always on.
M3         Speaker on until Carrier Detect except during dialing.
O, O0      Return to on-line DATA mode from on-line COMMAND mode.
O1         Go on-line and initiate retrain (2400 bps).
Q, Q0      Display result codes (Quiet disabled).
Q1         Do not display result codes (Quiet enabled).
Q2         Display result codes in ORIGINATE mode only.
S(r)=(n)   Set register (r) to value (n).
V, V0      Display result codes in short form (Verbose disabled).
V1         Display full-word result codes (Verbose enabled).
X, X0      Display Smartmodem 300 compatible/CONNECT result code.
X1         Ignore dial tone and busy; CONNECT (nnnn) result code displayed.
X2         Ignores busy; CONNECT (nnnn) result code displayed.
X3         Modem ignores dialtone, CONNECT (nnnn) result code displayed.
X4         Recognizes dial tone and busy; CONNECT (nnnn) result code
           displayed.
X(y)       Send error message, where (y)>4.
&C, &C0    Carrier always ON.
&C1        Carrier Detect follows data carrier.
&C2        Carrier Detect follows CCITT timings.
&C3        Carrier Detect ON except for 2 or 3 seconds during disconnect.
&D, &D0    Ignores DTR.
&D1        Go to COMMAND mode to ON-to-OFF transition of DTR.
&D2        Hang up and go to COMMAND mode on ON-to-OFF transition of DTR.
&D3        Reset on ON-to-OFF transition of DTR.
&D4        Deliver all buffered data before disconnecting on ON-to-OFF.
           transition of DTR.
&F, &F0    Reset modem and recall Factory Profile 0.
&G, &G0    No guard tones.
&G1        550 Hz guard tone.
&G2        1800 Hz guard tone.
&P, &P0    Pulse dial make-break 39%/61%.
&P1        Pulse dial make-break 33%/67%.
&X, &X0    Display OK.
&X1        No effect.
&X2        No effect.

Sendfax Command Summary:

COMMAND        DESCRIPTION

#B(n)          Speed Control
(n)=0          Reserved
(n)=1          Reserved
(n)=2          Reserved for V.23
(n)=3          Reserved for V.23
(n)=4          Fax Transmission Speed of 2400 baud per second
(n)=5          Fax Transmission Speed of 4800 baud per second

#E(n)          Received from Display Format Selection
(n)=0          Disable Display of Received HDLC Frames
(n)=1          Display frame in binary format
(n)=2          Display from in 2-digit ASCII Hex format

#F(n)          Mode Control
(n)=0          Return to Normal Mode (300 to 2400 bps)
(n)=1          Enter FAX mode (4800 bps)

#K(n)          DTE Flow Control
(n)=0          Disable flow control
(n)=3          Enable flow control
(n)=4          Enable XON/XOFF flow control

#P(n)          Number of pages to be transmitted
(n)=1 to 255

#R(n)          Resolution control
(n)=0          Send document with normal resolution
(n)=1          Send document with fine resolution