Multi Tech Equipment MT5634ZBA-V-V92 manual Command +DCS=x,y Select V.44 Data Compression

MultiModemZBA-V-V92 User Guide		4 AT Commands, S-Registers, & Result Codes
Command: +DCS=x,y Select V.44 Data Compression
Values:	x = 0 or 1 (V.42bis)
	y = 0, 1, or 2 (V.44)
Default:	1, 2
Description:	Selects V.42bis/V.44 data compression.
+DCS=0,0	V.42bis and V.44 data compression are both disabled.
+DCS=0,1	V.42bis is disabled; V.44 data compression is acceptable.
+DCS=0,2	V.42bis is disabled; V.44 only when connected to a V.92
	server.
+DCS=1,0	V.42bis is acceptable; V.44 data compression is disabled.
+DCS=1,1	V.42bis is acceptable; V.44 data compression is acceptable.
+DCS=1,2	V.42bis is acceptable; V.44 only when connected to a V.92 server.
+DCS=?	Displays the allowed values.
+DCS?	Displays the current value.
Command: +DR=n	V.44 Data Compression Reporting
Values:	n = 0 or 1
Default:	0
Description:	Enables or disables the V.44 data compression report. If the
	compression report is enabled, the +DR:<type> intermediate
	result code reports the current DCE-DCE data compression type.
	It is issued after the Error Control Report (+ER) and before the
	final result code (e.g., CONNECT). The intermediate result
	code descriptions are shown after the command descriptions.
+DR=0	Disables the V.44 compression report.
+DR=1	Enables the V.44 compression report.
+DR=?	Displays the allowed values.
+DR?	Displays the current value.
+DR: NONE		Data compression not in use.
+DR: V42B V.42bis is in use in both directions.
+DR: V44		V.44 is in use in both directions.
Command: +DS44=n V.44 Data Compression
Values:	See description
Default:	See description
Description:	Controls the V.44 data compression function.
	The command syntax is +DS44=[direction][,[0][,[0]
	[,[max_codewords_tx][,[max_codewords_rx][,[max_string_tx]
	[,[max_string_rx][,[max_history_tx][,[max_history_rx]]]]]]]]]<CR>

Subparameters that are not entered retain their current value. Commas separate optional subparameters, and must be inserted to skip a subparameter. Example: +DS44=,,,2048,2048<CR> changes the maximum number of code words in both direc- tions, and keeps all other settings at their current values.

+DS44=? Reports supported options in the format (list of supported direc- tion values), (0), (0), (list of supported max_codewords_tx val- ues), (list of supported max_codewords_rx values), (list of sup- ported max_string_tx values), (list of supported max_string_rx val- ues), (list of supported max_history_tx values), (list of supported max_history_rx values). Example: +DS44: (3, 0), (0), (0), (256- 2048), (256-2048),(31-255),(31-255),(512-11008),(512-11008).

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