AT Command Set
Preliminary
6
Order No. DM336P-002-01
Version : DM336P-AT-P04
Ln
Volume Control.
L0
Speaker volume off.
L1
Low speaker volume.
L2*
Medium speaker volume.
L3
Loud speaker volume.
Mn
Speaker Control.
M0
Speaker off.
M1*
Speaker on until carrier detected.
M2
Speaker always on.
M3
Speaker on until carrier detected and off
while dialing.
Nn
Auto mode Selection.
N0
Disable auto mode. Modem connect speed is
fixed according to AT*Nn setting.
N1*
Enable adaptive connect speed (always
connect at the highest compatible speed).
On
Return to Data Mode Selection.
O0*
Return to Data Mode.
O1
Return to Data Mode and initiate a retrain.
Qn
Modem Response Selection.
Q0*
Modem sends responses.
Q1
Modem does not sends responses.
Sr?
Reads Register r Value.
r is 0 to 97.
Sr=n
Set Register r to Value n.
r is 0 to 97, n is 0 to 255.
Un
V.34 Control.
U0
Disable V.34 when AT*N1 - AT*N6.
U1
Enable V.34.
U2
Enable V.34 aggressive connection
Vn
Responses Selection.
V0
Numeric responses.
V1*
Verbose (text) responses.
Xn
Response Set Selection (See table 1).
X0
Report basic call progress result codes.
X1
Report basic call progress result codes and
connections speeds, disable dial tone and
busy tone detection.
X2
Report basic call progress result codes and
connections speeds, disable busy tone detection only.
X3
Report basic call progress result codes and
connections speeds, disable dial tone detection only.
X4*
Report all call progress result codes and
connection rate.
Yn
Long Space Disconnect Selection.
