38
(Forces &Q5, S36=7, and S48=7)
AT\N4 Selects LAPM error-correction mode. Failure to make an LAPM
error-correction connection results in the modem hanging up.
(Forces &Q5 and S48=0) Note:The-K1 command can override the
\N4 command.
AT\N5 Selects MNP error-correction mode. Failure to make an MNP
error-correction connection results in the modem hanging up.
(Forces &Q5, S36=4, and S48=128)
AT+MS Commands Select Modulation
AT+MS? Inquiry current modulation status
The response is :+MS:<mod>,<automode>,<min_rate>,<max_rate>
where, <mod> is modulation mode
<automode> 0 - Automode disabled
1 - Automode enabled without V.8 (except for V.34)
2 - Automode enabled with V.8 for any applicable
modulation
<min_rate> and <max_rate> are the specified range of possible
DCE linking speed.
For example, +MS:9,1,1200,14400
Supported Options: The modem can send a string of information to the DTE
consisting of supported options.
+MS=? The response is: +MS:(list of supported <mod> values),
(list of supported <automode>values),
(list of supported <min_rate>values),
(list of supported<max_rate>values)
+MS=u[,v,w,x,y,z]
where, u 0 V.21 300 bps
1 V.22 1200 bps
2 V.22bis 2400 or 1200 bps
3 V.23 1200
9 V.32 9600 or 4800
10 V.32bis 14400, 12000, 9600, 7200, or 4800
11 V.34 33600, 31200, 28800, 26400, 24000, 21600, 19200, 16800
14400, 12000, 9600, 7200, 4800 or 2400 (Default)
64 Bell 103 300
69 Bell 212 1200
74 V.FC 28800, 25400, 24000, 21600, 19200, 16800 or 14400
v 0 Automode disabled
1 Automode enabled without V.8 (except for V.34) (Default)
2 Automode enabled with V.8 for any applicable modulation
w <min_rate>: 300 to 33600.
x <max_rate>: 300 to 33600.
y <min_rx_rate>: 300 to 33600.
z <max_rx_rate>: 300 to 33600.
