GSM/GPRS Module
M35 AT Commands Manual
M35_AT_Commands_Manual Confidential / Released 183 /
186
Parameter
1. This command is only for data call.
2. GSM transmits the data transparently. The remote TA may support this compression.
3. This command must be used in conjunction with command
AT+CRLP
to enable compression
(
AT+CRLP=X,X,X,X,1,X
).
15.7. AT+DR V.42bis Data Compression Reporting Control
compression mode by TA at the compression negotiation with
the remote TA after a call set up.
OK
Reference
V.25ter
<p0>
0
NONE
<n>
0
Allow negotiation of
<p0>
down
1
Do not allow negotiation of
<p0>
- disconnect on difference
<p1>
512-4096
Dictionary size
<p2>
6-250
Maximum string size (Default value is 6)
AT+DR V.42bis Data Compression Reporting Control
Test Command
AT+DR=?
Response
+DR:
(list of supported
<value>
s)
OK
Read Command
AT+DR?
Response
+DR: <value>
OK
Write Command
AT+DR=[<value>]
Response
This parameter setting determines whether or not
intermediate result code of the current data compressing is
reported by TA to TE after a connection is established.
OK
Reference
V.25ter
NOTES