That's an interesting solution. Thanks for posting it, I'll see if that works in the future for others.I reset network settings, restarted the phone and it seems to be resolved for now. Thanks for the reply. I've had echoes with Lifeproof cases when I used speakerphone on my end but never had this issue without. One call was to my husbands flip phone, one to a landline. The receiver couldn't hear it. Only I could.