4 at commands, s-registers, and result codes – Multi-Tech Systems MT5600BL User Manual
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4 AT Commands, S-Registers, and Result Codes
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Command:
L
n
Monitor Speaker Volume
Values:
n = 0, 1, 2, or 3
Default:
1
Description:
L0
Select low volume.
L1
Select low volume.
L2
Select medium volume.
L3
Select high volume.
Command:
M
n
Monitor Speaker Mode
Values:
n = 0, 1, 2, or 3
Default:
1
Description:
M0
Speaker is always off.
M1
Speaker is on until the carrier signal is detected.
M2
Speaker is always on when the modem is off-hook.
M3
Speaker is off when receiving carrier and during dialing, but
on during answering.
Command:
N
n
Modulation Handshake
Values:
n = 0 or 1
Default:
1
Description:
N0
Disables automode. The modem attempts a handshake at the
speed set by S37 or, if S37=0, at the most recently sensed serial
port speed.
N1
Enables automode. The modem attempts a handshake at the
speed set by S37 or, if S37=0, at the highest possible speed.
During the handshake, fallback to a lower speed can occur.
Note:
Setting the N command automatically sets the <automode>
parameter of the +MS command. N and S37 are provided only
for compatibility with existing software. +MS is the recom-
mended command.
Command:
O
n
Return Online to Data Mode
Values:
0 or 1
Default:
None
Description:
O0
Exit online command mode and return to online data mode
without a retrain. Normally used after a +++ escape (see
+++AT<CR>
escape sequence).
O1
Exit online command mode and return to online data mode
after a retrain.
Command:
P
Pulse Dialing
Values:
P, T
Default:
T
Description:
Forces pulse (non-touch-tone) dialing until a T command or T
dial modifier is received.
Command:
Q
n
Result Codes Enable/Disable
Values:
n = 0 or 1
Default:
0
Description:
Q0
Enable result codes.
Q1
Disable result codes.