Multi-Tech Systems CDMA Wireless Modem Error Control Selection +ESR, Values PendingTD, PendingRD

Chapter 17 – Extended AT Commands in IS707.3

Error Control Selection +ESR

Description: The extended-format numeric parameter is used to control the use of selective repeat (SREJ) option in V.42 on the PSTN link (if present in IWF). The command is not relevant for packet service.

Values:	<Val>
	0: Do not use SREJ
	1: Use SREJ if available in remote DCE; continue without it if not
	2: Use SREJ if available in remote DCE; disconnect if SREJ is not available
Syntax:	Command syntax: AT+ESR=[<Val>]
	Command	Possible Responses
	AT+ESR?	+ESR: 0
	Note: Display the current setting.	OK
		Note: Command is valid
	AT+ESR=1	OK
	Note: Set value to 1.	Note: Command is valid

Error Control Selection +ETBM

Description: The extended-format compound parameter is used to control the handling of data remaining in IWF buffers upon service termination. The command is not relevant for packet service.

Values:	<pending_TD>
	0: Discard all buffered data immediately and disconnect
	1: Attempt until all data is delivered and acknowledged (ignore timer)
	2: Attempt until all data is delivered and acknowledged; If timer expires, discard
	remainder
	<pending_RD>
	0: Discard all buffered data immediately and disconnect
	1: Attempt until all data is delivered (ignore timer)
	2: Attempt until all data is delivered; If timer expires, discard remainder
	<timer>
	0-30: Deliver timer value in seconds
	other: Higher values may be supported at manufacture’s option
Syntax:	Command syntax: AT+ETBM=[<pending_TD>[,<pending_RD>[,<timer>]]]
	Command	Possible Responses
	AT+ETBM?	+ETBM: 0, 1, 20
	Note: Display the current setting.	OK
		Note: Command is valid
	AT+ETBM=1	OK
	Note: Set value to 1.	Note: Command is valid
	AT+ETBM?	+ETBM: 1, 1, 20
	Note: Display the current setting.	OK
		Note: Command is valid

Multi-Tech Systems, Inc. CDMA Wireless AT Commands - PN S000294C 135