User Manual

AT Commands Reference Manual
100722B
Conexant
3-51
3.2.4 Modulation Control Commands
+MS - Modulation Selection
This extended-format compound parameter controls the manner of operation of the
modulation capabilities in the modem. It accepts six subparameters.
Syntax
+MS=[<carrier>[,<automode>[,<min_tx_rate>[,<max_tx_rate>[,<min_rx_rate>
[,<max_rx_rate>]]]]]]
Where possible <carrier>, <min_tx_rate>, <max_tx_rate>, <min_rx_rate>, and
<max_rx_rate> values are listed in Table 3-3.
Table 3-3. +MS Command Supported Rates
Modulation <carrier> Possible (<min_rx_rate>, <min_rx_rate>, (<min_tx_rate>),
and <max_tx_rate>) Rates (bps)
Bell 103 B103 300
Bell 212 B212 1200 Rx/75 Tx or 75 Rx/1200 Tx
V.21 V21 300
V.22 V22 1200
V.22 bis V22B 2400 or 1200
V.23 V23C 1200
V.32 V32 9600 or 4800
V.32 bis V32B 14400, 12000, 9600, 7200, or 4800
V.34 V34
33600, 31200, 28800, 26400, 24000, 21600, 19200, 16800,
14400, 12000, 9600, 7200, 4800, or 2400
K56flex K56
56000, 54000, 52000, 50000, 48000, 46000, 44000, 42000,
40000, 38000, 36000, 34000, 32000
V.90 V90 56000, 54667, 53333, 52000, 50667, 49333, 48000, 46667,
45333, 44000, 42667, 41333, 40000, 38667, 37333, 36000,
34667, 33333, 32000, 30667, 29333, 28000
V.92 downstream V92
56000, 54667, 53333, 52000, 50667, 49333, 48000, 46667,
45333, 44000, 42667, 41333, 40000, 38667, 37333, 36000,
34667, 33333, 32000, 30667, 29333, 28000
V.92 upstream V92
48000, 46667, 45333, 44000, 42667, 41333, 40000, 38667,
37333, 36000, 34667, 33333, 32000, 30667, 29333, 28000,
26667, 25333, 24000
Note:
Some <carrier> values may not be supported by certain model models. For example,
modem models supporting V92 may not support K56.