I can always count on my first attempt to place a call being dropped with that annoying beep tone. Either as soon as the call is connected or shortly into the call, it drops and then I have to redial and then I have an uninterrupted conversation. I always have at least 3 to 4 bars of 4G. It happens at home while the phone is in its Wilson Sleek signal booster or away from home where I don't need the booster....doesn't matter....the first call drops and I redial. Anyone else? Anything I can do?