User`s guide
76 CHAPTER 6: TECHNICAL REFERENCE
&Un With n > 0, sets the floor connect speed (lowest acceptable
connection speed).
Note: If your modem cannot connect to the remote modem at or above
the speed set with this command, it will hang up.
&N=0 &U=0Connects at highest available speed.
Note:This default setting should be sufficient for most users.
&N>0Connects at fixed speed.
&U>0Connects at highest speed above &Un.
&N>0 &U>0Connects at highest speed between &Nn and &Un
&U0 No minimum connection speed.
&U1 300 bps
&U2 1200 bps
&U3 2400 bps
&U4 4800 bps
&U5 7200 bps
&U6 9600 bps
&U7 12,000 bps
&U8 14,400 bps
&U9 16,800 bps
&U10 19,200 bps
&U11 21,600 bps
&U12 24,000 bps
&U13 26,400 bps
&U14 28,800 bps