Zoom 2812 Owner's Manual page 39

To get maximum data throughput, you can use a
computer-to-modem speed of 230,400 bps (if
your COM port can support this speed); set this
for each entry in the dialing directory.
Be aware that many files downloaded from bulle-
tin boards have already been compressed. In
general, your modem will not be able to further
compress such files.
Chapter 3 Problems and Solutions 39