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NAL Research Corporation (TN2012-02-V1.0)
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0
Do not disconnect if V.42bis is not negotiated by the A3LA-RS as specified in
<direction> (default)
1
Disconnect if V.42bis is not negotiated by the A3LA-RS as specified in <direction>
<max_dict> can take on the following values: 512 to 2048. Default is 512.
<max_string> can take on the following values: 6 to 250. Default is 6.
Read Command:
+DS?
Query the current data compression parameter settings. The response is in the form:
+DS: <direction>,<comp_neg>,<max_dict>,<max_dict>
Test Command:
+DS=?
List the supported data compression parameters. The response is in the form:
+DS: (supported<direction>s),(supported<comp_neg>s,(supported
<max_dict>s),(supported<max_dict>s)
Data compression will not work if IRLP is in unacknowledged mode.
Note:
The register is not updated right after the user requests new values because the
requested values may or may not be what IRLP will use once a data call is established due to
negotiations with the other peer. If the register is updated right away, this may give the user
the impression that those values will be used during the data call, but there is no guarantee
that will be the case. The real values will only be known once a data call is established and the
negotiation phase is done. For that reason, the values are written to the register only after a
call is established and both sides have negotiated parameter values. The value of the register
will be reset to default value (3) after the call is completed.
A.8.32 +DR – Data Compression Report Level
Set Command:
+DR=[<mode>]
Set the data compression reporting level.
<mode> can take on the following values:
0
Disable data compression reporting (default)
1
Enable data compression reporting
If reporting is enabled, the following intermediate result codes are transmitted by the A3LA-RS:
+DR: NONE No data compression
+DR: V42B Data compression in use in both directions
+DR: V42B RD Data compression in use in receive direction only
+DR: V42B TD Data compression in use in transmit direction only
Read Command:
+DR?
Query the current reporting level setting. The response is in the form:
+DR: <mode>
Test Command:
+DR=?
List the supported parameter settings. The response is in the form:
+DR: (supported <mode>s)