[eglynum]

"1X" is used for phone calls. If you use "EVDO only," you can surf the internet and make outgoing calls fine, but your phone will never pick up incoming calls. The best you can do is make an outgoing call - at which point you'll finally be notified of all the messages you have waiting. This has been my experience with two different phones in a major metropolitan area (meaning, it's not a coverage issue).