Great info John. Thanks!
I have the Widex Inteo (in the ear)
. I have no issues with interference on other cell phones that I have used from other people. I have also never used another bold besides my own.
I have only had issues with my Bold. Thats why I figured it was the telecoil.
On my curve, I didn't haven't issues at all. On the curve, I could notice a difference when i had telecoil on or off.