Is there a way of turning off USB devices?

I have a modem which is permanently connected via USB. I would like to
turn it off as
a) my G3 answers the phone if it rings (don't know why; I have no fax
software enabled on the machine), and
b) I get a little interference with the radio next to the computer.

So, is there a software method of turning off and on the USB devices?

T

Tom Lewis, in beautiful Jervis Bay, NSW, Oz

also on the Internet at [EMAIL PROTECTED]

Family web site: http://www.users.bigpond.com/talewis/tklr_at_home.html