I was completely missing calls and texts over the last few weeks which is completely unacceptable as the phone is my main line (and I have two small kids!). The rep at the verizon store told me it was because I needed to update the tower information used by the phone MANUALLY every 30 days.
As a Verizon customer for over 7 years I was surprised as I was NEVER told to do this before with ANY phone and had never had such a problem before. I find it extremely frustrating that service could be completely compromised even in an emergency because Verizon does not automatically update such information to phones. I can get every other type of UNWANTED update to my Droid 2 but not one that would ensure my basic phone features work in an emergency.
Way to go Verizon. I'm glad I'll be able to shop on Amazon during say a house fire but not dial 911.