Ds44 - v.44 compression select, Syntax, Defined values – Longshine LCS-8056C2 User Manual

Page 68

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Commands for Host-Processed Modems Reference Manual

3-46

Conexant

100498E

+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.)

<max_codewords_rx>

Decimal number from 256 to 2048 that specifies the maximum
number of codewords which should be negotiated in the
receive direction. (Default = 2048.)

<max_string_tx>

Decimal number from 32 to 255 that specifies the maximum
string length to be negotiated in the transmit direction.
(Default = 32.)

<max_string_rx>

Decimal number from 32 to 255 that specifies the maximum
string length to be negotiated in the receive direction. (Default
= 32.)

<max_history_tx>

Decimal number from 2048 to 4096 that specifies the
maximum size of the history buffer to be negotiated in the
transmit direction. (Default = 4096.)

<max_history_rx>

Decimal number from 2048 to 4096 that specifies the
maximum size of the history buffer to be negotiated in the
receive direction. (Default = 4096.)

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