Actiontec electronic V.90 ISA user manual Nn Error Control Mode Selection

The third case is where a break is received from a remote modem during a connec- tion:

	Command		Effect
	\K0		Clear data buffers and send break to the DTE.
	\K1		Clear data buffers and send break to the DTE. (Same
			as 0.)
	\K2		Send a break immediately to DTE.
	\K3		Send a break immediately to DTE. (Same as 2.)
	\K4		Send a break in sequence with received data to DTE.
	\K5		Send a break in sequence with received data to DTE.
			(Same as 4.)(Default)
Result Codes:
	OK	n = 0, 1, 2, 3, 4,
		5
	ERROR	Otherwise
\Nn		Error Control Mode Selection

This command determines the type of error control used by the modem when send- ing or receiving data.

Command	Effect
\N0	Buffer mode. No error control (same as &Q6).
\N1	Direct mode.
	MNP or disconnect mode. The modem attempts to
\N2	connect in MNP 2-4 error control procedure. If this fails,
	the modem disconnects. This is also known as MNP
	reliable mode.
	V.42, MNP, or buffer (default). The modem attempts to
	connect in V.42 error control mode. If this fails, the
\N3	modem attempts to connect in MNP mode. If this fails,
	the modem connects in buffer mode and continues
	operation. This is also known as V.42/ MNP auto
	reliable mode (same as &Q5).
	V.42 or disconnect. The modem attempts to connect in
\N4	V.42 error control mode. If this fails, the call will be
	disconnected.
\N5	V.42 MNP or buffer (same as \N3)
\N7	V.42. MNP or buffer (same as \N3).

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