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<serv> can have one of the following values:
ASYNC
asynchronous transparent
SYNC
synchronous transparent
REL ASYNC
asynchronous non-transparent
REL SYNC
synchronous non-transparent
Read Command: +CR?
Query the current service reporting level settings. The response is in the form:
+CR: <mode>
Test Command: +CR=?
List the supported reporting levels. The response is in the form:
+CR: (supported <mode>s)
A.8.31 +DS – Set Data Compression Function
Set Command: +DS=[<direction>[,<comp_neg>[,<max_dict>[,<max_string]]]]
Set the V.42bis data compression function.
<direction> can take on the following values:
0
No compression
1
Transmit only
2
Receive only
3
Both directions (default)
<comp_neg> can take on the following values:
0
Do not disconnect if V.42bis is not negotiated by the A3LA-RM as specified in
<direction> (default)
1
Disconnect if V.42bis is not negotiated by the A3LA-RM 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