User guide

Developers guidelines | AT commands
54 June 2010
Intermediate result codes
+DR Data compression indication
Read command: AT+DR? Displays the current <value> setting.
Test command: AT+DR=? Shows if the command is supported.
Test command
response: +DR: (list of supported <values>s)
Parameter:
<value>:
<value> Description
0 Intermediate compression mode reporting disabled.
Default value
1 Intermediate compression mode reporting enabled
Description: Data compression report. Enabled by using AT+DR.
Intermediate result
code: +DR: <type>
Parameter:
<type>:
<type> Description
NONE No data compression negotiated
V42B V.42 bis data compression negotiated
V42B RD V.42 bis half duplex compression negotiated on
received data
V42B TD V.42 bis half duplex compression negotiated on
transmitted data