Multi-Tech Systems MT5634ZBA-DID manual Modulation Selection, Subparameters

MultiModemDID User Guide	Chapter 4 - AT Commands, S-Registers, Result Codes
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
	inserted to skip a subparameter. Example: +MS=,0<CR>
	disables automode and keeps other settings at current values.
+MS=? Reports supported options in the format (list of supported mod
	values),(list of supported automode values),(0),(list of
	supported max_rate values),(0),(list of supported max_rx_rate
	values). 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, 31200, 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.
	mod	Modulation	Possible rates (bps)1
	V922	V.92	56000, 54666, 53333, 52000, 50666, 49333,
			48000, 46666, 45333, 44000, 42666, 41333.
			40000, 38666, 37333, 36000, 34666, 33333,
			32000, 30666, 29333, or 28000
	V903	V.90	56000, 54666, 53333, 52000, 50666, 49333,
			48000, 46666, 45333, 44000, 42666, 41333.
			40000, 38666, 37333, 36000, 34666, 33333,
			32000, 30666, 29333, or 28000
	V34	V.34	33600, 31200, 28800, 26400, 24000,
			21600,19200, 16800, 14400, 12000, 9600, 7200,
			4800, or 2400
	V32B	V.32bis	14400, 12000, 9600, 7200, or 4800
	V32	V.32	9600 or 4800
	V22B	V.22bis	2400 or 1200
	V22	V.22	1200
	V23C	V.23	1200
	V21	V.21	300
	Bell212A	Bell 212A	1200
	Bell103	Bell 103	300

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.

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