alright, i have this problem
my phone has been working for months, and now something happened

i can receive calls, and sms, i have full bars and everything, but i cannot make calls! it just says call ended

i ve tried changing de date and time thing (switching autoamtically set off) and the caller id hide is off too

what can i do? its been working for 6 months already!
btw im in 1.1.1 with 3.9 bl