I bought a brand new Motorola C600 back in the day. After about a year, it became very difficult to hear callers as they spoke and as time progressed, it just got worse. After having the phone for two years, I went against my better judgment and bought another Motorola phone--the KRZR.I loved the compactness, the V-Cast features (which turned out not to be worth it--talk about slow web surfing!!), and the deep red color of the model I chose. However, now, again after one year, the phone is LOSING ITS ABILITY TO AUDIBLY RING. It sometimes rings aloud but most often I have to keep it in my HAND so I can feel the vibration if someone calls. Why don't I keep it in my pocket? Because the vibration is SO WEAK, you miss it. Even when it was fully functional, the phone vibrates so weakly, you can't feel it in your pocket. I'd strongly recommend skipping this phone.