The data used for the purpose of WhatsApp calling will be fully zero rated....While the calls are actually always free, especially over Wi-Fi, I guess a better way to describe it is that the microscopic amount of data it uses won't cost you anything while in this period.
:erm:Guys and girls... why would you go and give the thumbs-up to a company claiming that they provide an already free service, for free?
The proper attitude I feel should be to tell CellC to STFU and stop capitalising the same thing Vodacrap and MTN is.
This is not revolutionary, or consumer-centric or anything good... free is how it was intended to the world, and an ISP should not be praised by promoting a free service for free, especially if it's a limited time, because it's trying to NOT KEEP IT FREE!
Braincells people... grow them.