EXP Computer ThinFax LXM - Manual (Page 24)

APPENDIX A
Basic Data Modem 'AT' Commands
Command Default Function
A/ ** none Repeat last command
A none Answer
Bn * 1 Select CCITT or Bell
Cn 1 Carrier control option
D none Dial command
En * 1 Command echo
Fn 1 On-line echo
Hn 0 Switch hook control
In 0 Identification/checksum
Kn none SRAM buffer control
Ln * 2 Speaker volume control
Mn * 1 Speaker control
Nn * 1 Connection data rate control
On 0 Go on line
P * none Select pulse dialing
Qn * 0 Result code display control
Sn none Select an S-register
Sn=x none Write to an S-register
Sn? none Read from an S-register
? none Read last accessed S-register
T * none Select DTMF dialing
Vn * 1 Result code form
Xn * 4 Result code type
Yn * 0 Long space disconnect
Zn 0 Recall stored profile
&Cn * 1 DCD option
&Dn * 2 DTR option
&F none Load factory defaults
&Gn * 0 Guard tone option
&Jn * 0 Auxiliary relay control
&M0 * 0 Communication mode option
&Pn * 0 Dial pulse ratio
&Q0 * 0 Communication mode option
&Sn * 0 DSR option
&Tn 0 Self test commands
&Vn 0 View active and stored configuration
&Un * 0 Disable Trellis coding
&Wn 0 Stored active profile
&Yn * 0 Select stored profile on power up
&Zn=x none Store telephone number
%En * 1 Auto-retrain control
%G0 * 0 Rate Renegotiation
%Q none Line signal quality
-Cn * 0 Generate data modem calling tone
* Value saved in NVRAM.
** Command not preceded by an 'AT'.
_ Patent pending.
Data Mode Error Detection and Data Compression
The EXP ThinFax LX/LXM supports two types of error correction (MNP 2-4 and
V.42) and data compression (MNP 5 and V.42 bis). V.42 error correction uses LAPM
as the primary error- control protocol, and uses MNP 2-4 as an alternative. V.42 bis
data compression requires V.42 (LAPM only). MNP 5 requires MNP 2-4. The
supported V.42/MNP 'AT' command set is listed below
V.42, MNP 'AT' Commands
Command Default Function
%An* 13 Set auto-reliable fallback character
%Cn* 1 MNP 5 data compression control
\An* 3 MNP block size
\Bn* none Transmit break
\Cn* 0 Set auto-reliable buffer
\Gn* 0 Set modem port flow control
\Jn* 0 Bps rate adjust control
\Kn* 5 Set break control
\Nn* 3 Set operating mode
\O* none Originate reliable link
\Q* 3 Set serial port flow control
\T* 0 Set inactivity timer
\U* none Accept reliable link
\V* 2 Modify result code form
\Xn* 0 Set XON/XOFF pass-through
\Y none Switch to reliable mode
\Z none Switch to normal mode
-Jn* 1 Set V.42 detect phase
"Hn* 3 V.42 bis compression control