USRobotics 33600, x2/56K user manual Bit 4 Bit Result, Value

	Bit 4 Bit 5		Result
	0	0	Complete handshaking
			sequence: V.42 Detection,
	LAPM		error control, MNP.
	16	0	Disable MNP.
	0	32	Disable V.42 Detection and
			LAPM.
	16	32	Combined value of 48 nego-
	tiates		LAPM without Detec-
	tion phase.		Choose this value if the
	remote		modem uses LAPM but
	does not		support the Detection
	phase.
Reg Default	Function

S28 (Sets the V.32 handshaking time [allowable range of 0–25.4 seconds].)

0 (zero) Eliminates the V.32 answer tones for a faster connection.

8Default time (all times are in tenths of seconds).

255Disables all connections except V.32 at 9600 bps.

S29	20	Sets the duration, in tenths of a second, of
		the V.21 answer mode fallback timer.
S30	0	Reserved.
S31	128	Reserved.
S32	2	Bit mapped register setup for the 28.8 speed
		modems only. To set the register, see the
		instructions for S13.
		Bit	Value	Result
		0 (zero)1		V.8 Call Indicate enabled.
		1	2	Enables V.8 mode.
		2	4	Reserved
		3	8	Disable V.34 modulation.
		4	16	Disable 33.6 kbps support.
		5	32	Reserved
		6	64	Reserved

Sportster Winmodem 33600 & x2/56K - User's manual 53