Saint George, UT
Can't help ya, I am MagicJack and OOMA.
OOMA - never a problem.
MagicJack - always a problem when talking to my daughter. I think it is something in her voice profile that triggers the touch tones (controversial) and only I hear them. She never hears them, but them she never slows down enough to hear any incoming anything (woman thing, boy that should get me flamed).
For what it is worth I have read several post that claim it only happens when talking to their wife or girlfriend.
Sure would like to know what you come up with for a fix. I have tried to fix it on my daughter MagicJack system for over a year - absolutely no luck!