Re: My phone Samsung Gravity® TXT - Charcoal Yellow disconnects by itself very often when I don't speak on the phone. Phone is fully chrged and keypad is locked. I miss calls. Is it a defectious phone of maybe I miss something. Please adsvise.

Hello tmo-jessicab,

Thank you for your response. Another appropriate term, I think, is - it locks. You have to hold the red button for several seconds in order to get the phone/signal back. 

Regards

Michael