Digicom 3911, 3910 operation manual 14-10

COMSPHERE 3900 Series Modems

Table 14-2

(6 of 10)

391x Series AT Commands

AT		Description	DCP LCD
			Command
Command
			Sequence
&Fn	Select Factory Default Configuration Options. Loads factory configuration		Configure/
	options into Active (Operating) area.		Factory
	&F0	Async Dial
	&F1	Sync Dial
	&F2	Sync Leased: Answer
	&F3	UNIX Dial
	&F4	Sync Leased: Originate
	&F5	Async Leased: Answer
	&F6	Async Leased: Originate
	&F7	TMp: Control
	&F8	TMp: Trib
	Only the &F0 and &F3 commands will leave you in AT Command mode.
	The other commands will take you out of AT command control and place
	the modem into Dumb mode. The only way to return to AT command
	control is via the diagnostic control panel (DCP).
&Gn	V.22bis Guard Tone.		Configure\Edit\
	&G0	Disable.	Dial Line
	&G1	550 Hz.
	&G2	1800 Hz.
	NOTE: The V.22bis Guard Tone cannot be disabled in some countries.
&In	Dial Transmit Level.		Configure\Edit\
	The AT command is &In, where n is		Dial Line
	0 for –1 dBm
	1 for –1 dBm
	•
	•
	•
	32 for –32 dBm
	NOTE: In North America the range of allowable values is –10 dBm to
		–32 dBm. This command is disabled in some countries (it
		answers OK but does not change the level).
&Ln	Leased Mode.		Configure\Edit\
	&L0	Disables leased-line operation.	Leased Line
	&L1	2-wire originate leased-line operation.
	&L2	4-wire originate leased-line operation.
	&L3	2-wire answer leased-line operation.
	&L4	4-wire answer leased-line operation.
	The &L command will cause the modem to reset before entering or
	exiting Leased-Line mode. Therefore, it must be entered as the last
	command in an initialization string.

14-10 September 1998 3910-A2-GN32-40