User`s manual

U.S. Robotics I-modem Command Reference
Displaying Help Screens • Page 13-5
n=3 HP Enq/Ack Host Mode n=3 Nondest./Unexpedited
n=4 HP Enq/Ack Terminal Mode &Zn=s Store Phone Number
n=5 Xon/Xoff for non-ARQ Mode &Zn=L Store Last Phone Number
&Kn n=0 Disable Data Compression &Zn? Query Phone Number
n=1 Auto Data Compression
n=2 Enable Data Compression
n=3 Selective Data Compression
&Ln n=0 Reserved
n=1 Reserved
&Mn n=0 Normal Mode
n=1 Synchronous Mode
n=4 ARQ/Normal Mode
n=5 ARQ Mode
n=6 V.25bis
n=7 V.25bis HDLC
&Nn n=0 Highest Modem Link Speed
n=1 300 bps
n=2 1200 bps
n=3 2400 bps
n=4 4800 bps
n=5 7200 bps
n=6 9600 bps
n=7 12000 bps
n=8 14400 bps
n=9 16800 bps
n=10 19200 bps
n=11 21600 bps
n=12 24000 bps
n=13 26400 bps