I look at it this way;
If your cordless phone was making my garage door go up and down all night,
I'd expect YOU to remedy that situation.

Better re-read that part 15 notice that came with it.

The sad fact is that a lot of these devices are made, with practically no
effort to immunity.
They lack even minimal shielding, have very poorly chosen 1st/2nd IF
frequencies, with no image rejection, and rely on the most trivial encoding
systems, all to save nickles.


http://www.arrl.org/tis/info/part15.html#Scope

"To help emphasize the secondary status of all devices operated under Part
15, the rules stipulate that the devices must not cause harmful interference
to other radio services and must accept any interference caused by the legal
operation of other radio services."


--
KC6ETE Dave's Engineering Page, www.dvanhorn.org
Microcontroller Consultant, specializing in Atmel AVR