My 8830 from Verizon constantly goes silent after about 2 minutes of talking. I have to hang up and call back whomever I am talking to and make the call again. It sucks and it happens at my house and at work. When this goes on, my signal strength is good and I dont know what to do but I cant hold a conversation on this thing. And by the way it's my FOURTH NEW one from VZW and the keep saying its the handset. Anyone else wit this problem???