Multi-Tech Systems MT3410ZLX-T/2 owner manual AT& Ampersand Commands

MultiMobile Owner’s Manual

AT& (Ampersand) Commands

Command	Options Function & Description
&Bn	Auto-retrain
&B0	Hang up on a poor received signal
&B1 *	Retrain on a poor received signal.
	Hang up if condition persists longer
	than the threshold set in S7 register
&B2	Don’t hang up; do not retrain (tolerate
	any line)
&Cn	Data carrier detect option
&C0	State of carrier from remote modem is
	ignored. RLSD (Receive Line Signal
	Detect) circuit is always on
&C1 *	State of carrier from remote modem is
	tracked. RLSD circuit reflects the state
	of carrier
&Dn	Data Terminal Ready (DTR) option.
&D0	DTR ignored
&D1	Go to command mode on on-to-off
	DTR transition
&D2 *	Hang up and go to command mode on
	on-to-off DTR transition. Auto-answer
	is disabled if DTR is low
&D3	Hang up and reset from user profile 0
	on on-to-off DTR transition
&F	Recall factory default setting as active
	configuration
&Gn	Guard tone option
&G0 *	No guard tone
&G1	550 Hz guard tone
&G2	1800 Hz guard tone
&Jn	Dummy command for AutoSync
	compatibility
&J0	Send OK to DTE

* Factory default setting

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