garbled

I received my iPhone X and all of a sudden I now have issues with people complaining I sound far away or garbled intermittently. I contacted Apple and went thru every step they suggested. They replaced my brand new phone with another. Then I contacted sprint. The tech at the store tells me to go...

We just bought 2 new iPhone 7 Plus phones. One seems fine. The other the transmission is garbled or distorted so bad words are unintelligible at times. Seems worse in normal (non speaker mode) At first we thought it was due to the increase in size from our old iPhone 6. Thinking your mouth...