MaxTech V.42bis, V.32bis user manual Q3

\Bn	n=1-9	Send a 1/10 second line break to the modem,
		where n = 1 to 9. At normal connect, the
		default is 3
\C_	\C0	Do not buffer data during LAPM/MNP
		handshaking
	\C1	Buffer all data for 4 seconds, until receiving
		200 characters or until a packet is detected
	\C2	Do not buffer data; switch to normal mode
		when fallback character is detected
\G_	\G0	Disable DCE flow control
	\G1	Enable DCE flow control
\J_	J0	Disable serial port data rate adjustment
		(keep high data rate between DTE and
		modem, regardless of modem-to-modem
		data rate)
	J1	Enable serial port data rate adjustment so
		serial data rate automatically adjusts to match
		the modem-to-modem data rate
\Kn	n=0-5	Set break control, where n= 0 to 5. Default
		is 5
\N_	\N0	Normal data-link only
	\N1	Direct data-link only
	\N2	MNP data link only
	\N3	V.42/MNP/Normal data link
	\N4	V.42 data link only
\O		Initiate reliable link during a normal link
\Q_	\Q0	Turn off flow control
	\Q1	XON/XOFF software flow control
	\Q2	CTS signal unidirectional hardware flow
		control
	\Q3	RTS/CTS signal bi-directional hardware
		flow control
\Tn		Inactivity timer, where n = 0 to 90 minutes.
		Default is 0
\U		Accept reliable link during a normal link
\V_	\V0	Do not send extended responses
	\V1	Send extended response set 1
	\V2	Send extended response set 2
\X_	\X0	Process XON/XOFF but don’t pass through
	\X1	Process XON/XOFF and pass through

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