Multi-Tech Systems MT5600SMI-34 manual Command +EB Break Handling in Error Control Operation

		Chapter 5 – AT Commands, S-Registers, and Result Codes
	+ES=6,,8	Enable V.80 Synchronous Access Mode.
	+ES=3	Enable V.42 with Detection Phase originator. Disable V.80
		Synchronous Access Mode originator.
	+ES=,,2	Allow LAPM, MNP, or Normal Mode connection answerer.
		Disable V.80 Synchronous Access Mode answerer.
	+ES=3,,2	Enable V.42 with Detection Phase originator, allow LAPM,
		MNP, or Normal Mode connection answer. Disable
		Synchronous Access Mode originator and answerer.
Report Commands:	+ES?	Reports the current values
		Response: +ES: <orig_rqst>,<orig_fbk>,<ans_fbk>
		Example: +ES: 3,0,2 For the default setting.
	+ES=?	Reports supported range of parameter values
		Response: +ES: (<orig_rqst> range),( <orig_fbk> range),
		(<ans_fbk> range)
		Example: +ES: (0-4,6,7),(0-4),(0-6,8,9)

Command: +EB	Break Handling in Error Control Operation
Description:	This extended-format compound parameter controls the break handling in
	V.42 operation. It accepts three numeric subparameters:
Default:	None
Defined Values:	<break_selection>		Decimal number 0 specifying that break is to be
			ignored, i.e., not signaled to remote DCE.
	<timed>		Decimal number 0 specifying that any transmitted
			V.42 L-SIGNAL will not indicate break signal length
			<default_length> Decimal number 0 specifying that
			break is not delivered to the DTE.
Report Commands:	+EB?	Reports current or selected values
		Response: +EB:
		<break_selection>,<timed>,<default_length><CR>
		Example: +EB: 0,0,0 For default settings.
	+EB=?	Reports supported range of parameter values
		Response: +EB: (<break_selection> range),(<timed> range),
	(default_length> range)
		Example: +EB: (0),(0),(0)

Command: +ESR	Selective Repeat
Description:	This extended-format numeric parameter controls the use of the selective
	repeat (SREJ) option in V.42.
	Decimal number 0 specifying that SREJ is not used.
Report Commands:	+ESR?	Reports Current or Selected Values:
		Response: +ESR: <value>
		Example: +ESR: 0 For default setting
	+ESR=?	Reports Supported Range of Parameter Values
		Response: +ESR: (<value>)
		Example: +ESR: (0)

Command: +EFCS	32-bit Frame Check Sequence
Description:	This extended-format numeric parameter controls the use of the 16-bit or
	32-bit frame check sequence (FCS) option in V.42.
Defined Values:	<value> Decimal number 0 specifying the use of the 16-bit FCS specified
	in V.42.
Report Commands:	+EFCS?	Current or Selected Values:
		Response: +EFCS: <value>
		Example: +EFCS: 0 For default setting.
	+EFCS=?	Reporting Supported Range of Parameter Values
		Response: +EFCS: (<value> range)
		Example: +EFCS: (0)

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