Fonzation

For some weird reason, Wataniya Telecom has been really pissing me off the past few days. Out of nowhere, I would suddenly lose all ability to make and receive calls although the reception bar is at its fullest. I would try switching the phone off and back on, and still nothing. It would remain in that state for 30 mins at least then back to normal; and it didnt happen once or twice, it was happening quite frequently throughout the days.