Multi-Tech Systems CDMA Wireless Modem Error Control Report +ER, Error Control Selection +ES

Chapter 17 – Extended AT Commands in IS707.3

Error Control Report +ER

Description: The extended-format numeric parameter is used to control whether the extended-format +ER intermediate result code is transmitted from the IWF over the stet interface.

Values:	<Val>
	0: Error control reporting disabled
	1: Error control reporting enabled
Syntax:	Command syntax: AT+ER=[<Val>]
	Command	Possible Responses
	AT+ER?	+ER: 0
	Note: Display the current setting.	OK
		Note: Command is valid
	AT+ER=1	OK
	Note: Set value to 1.	Note: Command is valid

Error Control Selection +ES

Description: The extended-format compound parameter is used to control the manner of operation of the V.42 protocol on the PSTN link (if present in IWF). The command is not relevant for packet service.

Values:	<orig_rqst>
	0: Direct mode
	1: Initiate call with Buffered mode only
	2: Initiate V.42 Detection Phase
	3: Initiate Alternative Protocol
	<orig_fbk>
	0: Error control optional; If error control not established maintain DTE-DCE data rate
	1: Error control optional; If error control not established change DTE-DCE data rate to
	match line rate
	2: Error control required; If error control not established, disconnect
	3: Error control required (only LAPM acceptable); If error control not established,
	disconnect
	4: Error control required (only alternative protocol acceptable); If error control not
	established, disconnect
	<ans_fbk>
	0: Direct mode
	1: Error control disabled, use Buffered mode
	2: Error control optional; If error control not established maintain DTE-DCE data rate
	3: Error control optional; If error control not established change DTE-DCE data rate to
	match line rate
	4: Error control required; If error control not established, disconnect
	5: Error control required (only LAPM acceptable); If error control not established,
	disconnect
	6: Error control required (only alternative protocol acceptable); If error control not
	established, disconnect
Syntax:	Command syntax: AT+ES=[<orig_rqst>[,<orig_fbk>[,<ans_fbk>]]]
	Command	Possible Responses
	AT+ES?	+ES: 3, 0, 2
	Note: Display the current setting.	OK
		Note: Command is valid
	AT+ES=1	OK
	Note: Set value to 1.	Note: Command is valid
	AT+ES?	+ES: 1, 0, 2
	Note: Display the setting after change.	OK
		Note: Command is valid

Multi-Tech Systems, Inc. CDMA Wireless AT Commands - PN S000294C 134