Network not working - How is this possible

Hi

How is this possible. I have perfect signal on both sims, sim2 selected as main sim. Data works. But I cant make calls.
s30.postimg.org/kdxjqw83h/Screenshot_2015_08_14_11_50_23.jpg?noCache=1439549 463
s9.postimg.org/othfzg5d7/Screenshot_2015_08_14_11_50_45.jpg?noCache=1439549 499