I've had this problem as long as I remember having my Sidekick 3 (since December '06), and I always thought the problem was my ears, but now, I think it's either the network or my Sidekick.

I'll open up my Sidekick, and I'll see that I've missed a call, and I always thought that I just didn't hear the ringer, so I'd turn up the ringer volume. This will happen about once or twice a week

However, today, my dad and I were in a car driving around, and my mom called his heathen Audiovox 8900. He talked to her, and then I opened up my Sidekick, and it says that she called me FIVE MINUTES EARLIER, the same time I was in the car! Of course I would've heard it in the car! I also had coverage, too!

Is this a network issue, or is it my Sidekick? Should I call T-Mobile? WHUDAFXUP?

Thanks!