I do wish there was a method to search by number. If someone calls my Blackberry, the caller ID will reveal who they are. But, if someone calls on my other phone, and I dont have them in the phone book, it can be a chore to find out who called (I know, I could just call them back, but I get some calls I dont want to return
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I have a large number of contacts, and I think the ability to search numbers would be very helpful.