US Robotics 005689-03 Manual page 45

&Nn Sets connect speed. If connection
cannot be established at this
speed, the modem will hang up.
Sets ceiling connect speed if &Un
is greater than 0. See &Un.
&N0 Variable rate
&N1 300 bps
&N2 1200 bps
&N3 2400 bps
&N4 4800 bps
&N5 7200 bps
&N6 9600 bps
&N7 12,000 bps
&N8 14,400 bps
&N9 16,800 bps
&N10 19,200 bps
&N11 21,600 bps
&N12 24,000 bps
&N13 26,400 bps
&N14 28,800 bps
&N15 31,200 bps
&N16 33,600 bps
&N17 33,333 bps
&N18 37,333 bps
&N19 41,333 bps
&N20 42,666 bps
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&N21 44,000 bps
&N22 45,333 bps
&N23 46,666 bps
&N24 48,000 bps
&N25 49,333 bps
&N26 50,666 bps
&N27 52,000 bps
&N28 53,333 bps
&N29 54,666 bps
&N30 56,000 bps
&N31 57,333 bps
&Pn Sets pulse (rotary) dial
make/break ratio.
&P0 U.S./Canada ratio,
39%/61%
&P1 U.K. ratio, 33%/67%
&Rn Sets Receive Data (RD) hardware
flow control, Request to Send
(RTS) (see also &Hn).
&R0 Reserved
&R1 Modem ignores RTS
&R2 Received Data to computer
only on RTS