Data Compression - US Robotics 56 K SOFTMODEM - COMMAND REFERENCE REV 1 Command Reference Manual

Table 3-60: +DR Data Compression Reporting Intermediate Result Codes
Result Code
+DR: NONE
+DR: V42B
+DR: V42B RD
+DR: V42B TD
+DR: V44
+DR: V44 RD
+DR: V44 TD
Command
+DR=<value>
+DR?
+DR=?
+DS=<direction>,<compression_negotiation>,<max_dict>,<max_string>—V.42
bis Data Compression
Result codes:
Data compression is not in use.
V.42 bis is in use in both directions.
V.42 bis is in use in the receive direction.
V.42 bis is in use in the transmit direction.
V.44 is in use in both directions.
V.44 is in use in the receive direction.
V.44 is in use in the transmit direction.
Table 3-61: +DR Extended Syntax Commands
Turns the data compression report result code on or off.
Displays the current status of the data compression report result code.
Displays all of the supported values for the <value> parameter.
Use the +DS command to configure the V.42 bis data compression method used
by the modem. The settings of this command overwrite the setting of a
%C<value> command. However, it can also be overwritten by %C<value>
command.
OK if <direction> = 0—3 and <compression negotiation> = 0 and <max_dict> =
512, 1024, 2048 and <max_string> = 6—32.
ERROR if <direction> does not equal 0—3 or <compression negotiation> does
not equal 0 or <max_dict> does not equal 512, 1024, 2048 or <max_string> does
not equal 6—32.
The <direction> parameter sets which directions use the compression method.
The 56K Softmodem uses compression in one or both directions.
Description
Description
56K Softmodem
Command Reference
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