42
PORTABLE USB MODEM
I9
Display the country code (for example,
NA Ver. 1
).
I11
Display diagnostic information for the last modem
connection, such as DSP and firmware version, link
type, line speed, serial speed, type of error
correction/data compression, number of past
retrains, etc.
Command:
M
n
Monitor Speaker Mode
Values:
n
=0, 1, 2, or 3
Default: 1
Description:
M0
Speaker always off.
M1
Speaker on until carrier signal detected.
M2
Speaker always on when modem is off-hook.
M3
Speaker on until carrier is detected, except while
dialing.
Command:
N
n
Modulation Handshake
Values:
n
=0 or 1
Default:
1
Description:
N0
Modem performs handshake only at
communication standard specified by
S37
and the
B
command.
N1
Modem begins handshake at communication
standard specified by
S37
and the
B
command.
During handshake, fallback to a lower speed can
occur.
Command:
O
n
Return Online to Data Mode
Values:
n
=0, 1, 3
Default:
None
Description:
O0
Exit online command mode and return to data
mode (see
+++AT<CR>
escape sequence ).
O1
Issue a retrain and return to online data mode.
O3
Issue a rate renegotiation and return to data mode.
Command:
P
Pulse Dialing
Values:
P, T
Default:
T
Description:
Configures the modem for pulse (non-touchtone)
dialing. Dialed digits are pulsed until a
T
command
or dial modifier is received.
