Very odd. Wife and I are having issues with calls not being dropped but it's like the mic stops working. People we are talking to are like "hello...hello, hello...HELL O. The whole time we are like "im here...yo...can you hear me." Then they hang up and call back and say "WTH is wrong with your phone". This just started a few days ago. Anyone seeing this? What could it be. During this, I have full signal. Happening on two iphones. This is not every call but happens several times in a day.