Nokia 6090 - DR Data Compression Reporting; DS Data Compression

Nokia 6090 AT Command Set 51
+DR Data Compression Reporting
This command controls the presentation of +DR:<compr> intermediate result code.
(V.25ter)
Syntax:
AT+DR=<mode>
Set reporting mode. Default option is 0.
AT+DR?
Query current setting.
Response is +DR: <mode>
AT+DR=?
Show supported modes.
Response is +DR:(list of supported
<mode>'s).
Parameters:
<mode>
0
data compression reporting disabled
1
data compression reporting enabled
+DS Data Compression
This command controls the V.42bis and MNP5 data compression functions. V.42bis
can be used with transparent and non-transparent data services and MNP5 can be
used only with transparent data service. The data service is selected with the
command AT+CBST. (V.25ter)
Syntax:
AT+DS=[<dir>[,<neg> [,<P1>[,<P2>]]]]
Set compression parameters.
AT+DS?
Query current setting.
Response is +DS: <dir>,<neg>,
<P1>,<P2>.
AT+DS=?
Show supported values.
Response is +DS: (list of supported
<dir>'s), (list of supported <neg>'s), (list of
supported <P1>'s), (list of supported
<P2>'s).
Parameters:
<dir>
0
no compression (V.42bis P0=0)
1
V.42bis transmit only or MNP5
2
V.42bis receive only or MNP5
3
V.42bis both directions or MNP5
<neg>
0
do not disconnect if compression is not
negotiated by the remote DCE as
specified in <direction>
1
disconnect if compression is not
negotiated by the re-mote DCE as
specified in <direction>
<P1>
maximum number of dictionary entries
which should be negotiated, 512
<P2>
maximum string length to be negotiated, 6
to 32, de-fault 20 (V.42bis P2).