Cellular data do not work multiple times
I am using iPhone 4S with iOS 6
Many times Cellular data do NOT work in my iPhone at multiple times.
After Toggling airplane mode OFF and ON for couple of times
or
by restaring the device it works
or
by Reseting Network settings
Then it works.
This happens frequetly.
I want to know why this happens frequetly.
Is a way to avoid this problem permanently, with out above temparary solutions
iPhone 4S, iOS 6.1.4