i have a blackberry 8320 from t-mobile but i've been having problems making and receiving calls. the phone reads my sim card and network but i can not make or receive calls. I can send text message, go on the t-mobile internet and receive voice mails when people call. I dont know what to do! I went to out of the country to nicaragua for 2 weeks so i decided to leave my phone at home. Well apparently my little cousin found it and played with it because ever since i got back i have been having this problem. how can i solve it
