Why can't I use my Galaxy S4 GT-I9500 to make a call?

[iddris abdulai]

i cant use my galaxy s4 GT-I9500 to make a call.

when dial a number it will not go at all even you can not check your balance,and sometime the signal would go and come again.

 

[B. Diddy]

Re: i cant use my galaxy s4 GT-I9500 to make a call.

Welcome to Android Central! What carrier do you have? Have you discussed the problem with them?