Multi-Tech Systems CDMA Wireless Modem manual V42 Bis Data Compression Report +DR, Val

Chapter 10 – Data Commands

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	Data compression is not in use
+DR: V42B	Rec. V.42 bis is in use in both directions
+DR: V42B RD	Rec. V.42 bis is in use in receive direction only
+DR: V42B TD	Rec. V.42 bis is in use in transmit direction only

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	Possible Responses
	AT+DR=1	OK
	Note: Reporting enabled	Note: Command valid
	AT+DR?	+DR: 1
	Note: Display the current value	OK
		Note: Command valid
	AT+DR=?	+DR: (0,1)
	Note: Display the supported values	OK
		Note: Command valid

Multi-Tech Systems, Inc. CDMA Wireless AT Commands - PN S000294C 75