Product data

USRobotics
Command Reference
Data Command Set - 58
Example: +DS: (0,3),(0),(2048),(32)
+DS44 - V.44 Compression Select
This extended-format compound parameter controls the V.44 data compression
function.
Syntax
+DS44=[<direction>[,< compress_negotiation
>[,<capability>[,<max_codewords_tx>
[,<max_codewords_rx>[,<max_string_tx>[,<max_string_rx>[,<max_history_tx>
[,<max_history_rx>]]]]]]]]]
Defined Values
<direction> Decimal number that specifies the desired direction(s) of
operation of the data compression function; from the DTE point of
view.
0 Negotiated, no compression.
1 Transmit only.
2 Receive only.
3 Both directions, accept any direction. (Default.)
<compress_negotiation>
Decimal number that specifies whether or not the modem should
continue to operate if the desired result is not obtained.
0 Do not disconnect if V.44 is not negotiated by the remote DCE as
specified in <direction>. (Default.)
1 Disconnect if V.44 is not negotiated by the remote DCE as
specified in <direction>.
<capability> Decimal number that specifies the use of stream method, packet
method, multi-packet method.
0 Stream method. (Default.)
1 Packet method.
2 Multi-packet method.
<max_codewords_tx>
Decimal number from 256 to 2048 that specifies the maximum
number of codewords which should be negotiated in the transmit
direction. (Default = 2048.)