Filter
Top Products
4 AT Commands, S-Registers, and Result Codes
34
MultiModemZPX User Guide
Command: +MS= Modulation Selection
Values: See description.
Defaults: See description.
Description: This extended-format command selects modulation, enables or
disables automode, and specifies the highest downstream and
upstream connection rates using one to four subparameters.
The command syntax is
+MS=[mod][,[automode][,[0][,[max_rate][,[0][,[max_rx_rate]]]]]]<CR>
Subparameters that are not entered retain their current value.
Commas separate optional subparameters, and must be in-
serted to skip a subparameter. Example: +MS=,0,<CR> disables
automode and keeps all other settings at their current values.
+MS=? Reports supported options in the format (list of supported mod
values),(list of supported automode values),(0),(list of sup-
ported max_rate values),(0),(list of supported max_rx_rate val-
ues). Example: +MS: (BELL103, V21, BELL212A, V22, V22B,
V23C, V32, V32B, V34, V90, V92), (0, 1), (0), (0-33600), (0), (0-
56000)
+MS? Reports current options in the format mod, automode, 0, max_rate,
0, max_rx_rate. Example: +MS: V92, 1, 0, 33600, 0, 56000.
Subparameters
mod Specifies the preferred modulation (automode enabled) or the
modulation to use in originating or answering a connection
(automode disabled). The default is V92.
Notes:
1. See optional <automode>, <max_rate>, and <max_RX_rate> subparameters.
2. Selects V.92 modulation as first priority. If a V.92 connection cannot be established,
the modem attempts V.90, V.34, V.32bis, etc.
3. Selects V.90 modulation as first priority. If a V.90 connection cannot be established,
the modem attempts V.34, V.32bis, etc.
V21 V.21 300
V22 V.22 1200
V22B V.22bis 2400 or 1200
V23C V.23 1200
V32 V.32 9600 or 4800
V32B V.32bis 14400, 12000, 9600, 7200, or 4800
V34 V.34 33600, 31200, 28800, 26400, 24000, 21600,19200, 16800,
14400, 12000, 9600, 7200, 4800, or 2400
V90
3
V.90 56000, 54667, 53333, 52000, 50667, 49333, 48000, 46667,
45333, 44000, 42667, 41333. 40000, 38667, 37333, 36000,
34667, 33333, 32000, 30667, 29333, or 28000
V92
2
V.92 56000, 54667, 53333, 52000, 50667, 49333, 48000, 46667,
45333, 44000, 42667, 41333. 40000, 38667, 37333, 36000,
34667, 33333, 32000, 30667, 29333, or 28000
Bell103 Bell 103 300
Bell212A Bell 212A 1200
mod Modulation Possible rates (bps)
1