I hate phonecalls too. I always end up speaking at the exact same time someone else does as I can't see their face. Then that leads to an awkward "You go, no..you go" debate. If I say "You go" first, then just go...please. I consider it rude when you try to be polite and say "no...you go" it's just so unnecessary and makes it awkward -.-
What is even worse than being on the phone, is being on the phone while someone else is in the room with me and can hear what I'm saying. GAH especially when it's my parents. Not that I'm hiding anything or it's private, I just always feel embarrassed when my parents watch me. Playing basketball outside I can score like 4/5 the time. As soon as my parents come out with a cup of tea or whatever, I can't even hit the backboard.