Walker High-Def Links v. Cell Phone EMI-RFI


Has anyone experienced how well the Walker High Definition Links mitigate the effects of EMI-RFI emitted by cell phones?

I was speaking on the cell today near our system and the speakers suddenly emitted a loud pulsating/vibrating sound as I walked in and out of the room.
somut
Turn off the cell phone.

Problem solved.

No need to spend hundreds of dollars.
Just was wondering because if a cell phone can cause such a loud disturbance, what might a microwave, laundry machine, or television set be doing to distort the signal.
Do you think the cell phone transmission that causes the electronic sound through speakers is in any way similar to any RFI that would be caused by a microwave, laundry machine or TV?