V42 Bis Data Compression Report +Dr - Multitech CDMA Wireless Modem Reference Manual

V42 Bis Data Compression Report +DR

Description: This command returns the results of data compression capability. If data reporting is
enabled, this command returns the data compression type of an incoming or outgoing data
call. Otherwise, the command returns NONE.
The intermediate result code represents current DCE-DCE data compression type. The
syntax for +DR reporting is: +DR<result>, and the result code is defined as follows:
+DR: NONE
+DR: V42B
+DR: V42B RD
+DR: V42B TD
The +DR intermediate result code, if enabled, is issued before the final result code, before
the +ILRR intermediate report and after the service report control +CR.
Values: This syntax is for setting the +DR reporting method.
<val>
0: Disable reporting
1: Enable reporting
Syntax: Command syntax: AT+DR=<val>
Command
AT+DR=1
Note: Reporting enabled
AT+DR?
Note: Display the current value
AT+DR=?
Note: Display the supported values
Multi-Tech Systems, Inc. CDMA Wireless AT Commands - PN S000294C
Data compression is not in use
Rec. V.42 bis is in use in both directions
Rec. V.42 bis is in use in receive direction only
Rec. V.42 bis is in use in transmit direction only
Possible Responses
OK
Note: Command valid
+DR: 1
OK
Note: Command valid
+DR: (0,1)
OK
Note: Command valid
Chapter 10 – Data Commands
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