C - Enable/Disable Data Compression - Conexant H08-15355F Reference Manual

Reporting Supported Range of Parameter Values
Command: +DR=?
Response: +DR: (<value> range)
Example: +DR: (0,1)
+DR: <type> Intermediate Result Code
The +DR: <type> reported represents the current (negotiated or renegotiated) modem-modem data compression type. If
enabled, the intermediate result code is transmitted at the point after error control negotiation (handshaking) at which the
modem has determined which data compression technique will be used (if any) and the direction of operation. The +DR
intermediate result code, if enabled, is issued after the Error Control Report (+ER) and before the final result code (e.g.,
CONNECT).
The format of this result code is:
Result Code Syntax
+DR: <type>
Defined Values
<type> An alphanumeric code corresponding to the selected option:
Example
+DR: V42B

3.2.6.3 %C - Enable/Disable Data Compression

Enables or disables data compression negotiation. The modem can only perform data compression on an error corrected link.
Syntax
%C[<value>]
Defined Values
<value> A decimal number corresponding to the selected option:
Result Codes:
OK <value> = 0, 1, 2, or 3.
ERROR Otherwise.
3-32
Command Reference Manual
NONE Data compression is not in use.
V42B V.42bis is in use in both directions.
ALT MNP 5 compression.
0 Disables data compression.
1 Enables both V.42 bis and MNP 5 data compression.
2 Enables both V.42 bis and MNP 5 data compression.
3 Enables both V.42 bis and MNP 5 data compression. (Default.)
Conexant
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