NEC 750C User Manual page 70

Command Description
\N1 Select normal mode connection
\N2 Select LAPM and MNP connection
\N3 Select LAPM, MNP and normal mode
connection
\N4 Select only LAPM connection
\N5 Select only MNP connection
\V0 Disable extended result code
\V1 Enable extended result code
%C0 Disable data compression
%C1 Enable MNP 5 data compression
negotiation
%C2 Enable V.42 bis data compression
%C3 Enable both V.42 bis and MNP5 data
compression
+MS Select modulation (see the next table for
values)
The command format is:
+MS=<mod>,<automode>,<min_rate>,<m
ax_rate>
<mod> Modulation
0 V.21
1 V.22
2 V.22 bis
9 V.32
10 V.32 bis
11 V.34
<automode>
0 Disables automatic modulation negotiation
1 Enables automatic modulation negotiation using V.8
bis/V.8 or V.32 bis Annex A.
Modem Commands A-4
AT Commands (cont'd)
Modulation Values
Possible Rate
300
1200
2400, 1200
9600, 4800
14400, 12000, 9600, 7200, 4800
336000,31200, 28800, 26400, 24000,
21400, 19200, 16800, 14400, 12000,
9600, 7200, 4800, 2400
Default
X
X