Facebook already does this in india. I remember seeing an advertisement of a telco that said you wont be charged for data for facebook. Does this means that India already had this non neutral internet? It didn't change the scenario much here.
https://support.skype.com/en/faq/fa10976/how-can-i-get-skype...
To protect revenue, SkypeIn was blocked, and SkypeOut was restricted to non-UK numbers.