Hi all new poster here. I bought my iPhone 4s from sprint 11/1/11. All has been well until today. My phone calls started to go to vvmail without ringing. This all started because my mailbox was full and I went to clear it out. While there I changed my voice message from default to my voice. I called sprint they reset my phone while I waited. Sprint tried to call still voicemail only. I rebooted my phone and it worked for awhile then stopped working... Then I changed to default voice again and got rid of vvmai altogether . Seems to work for now. Any ideas would be very appreciated. Thanks so much. I searched this forum but didn't see anything like mine. Great forum, so much info. Thanks again .