Hey, previously with iOS 8.2 or in general since iOS 7 (when they introduced these animations) when you answered a call by pressing the green button, there was this animation. During this animation the caller couldnt hear you, it's like the microphone wasn't activated till this animation was done... So you had to wait a bit till the caller could hear you. Sometimes you said "Hey" and after a few seconds the caller asked if he has me on the line because he couldn't hear your "Hey". I remember that there was a thread in this forum regarding iOS 7. I hope you understand what I mean! Thank you!