Hi guys,I'm trying to find a VoIP solution for my parents in Mumbai. They have a limited-use plan from MTNL as their internet connection (capped at 500 MB, I think).Not being very familiar with limited plans, my question is this - Is VoIP data counted as part of the "download limit"?Specifically, my concern is that if I were to use a solution like Magic Jack (btw, I would greatly appreciate reading about the experiences of anyone that has tried this), my parents would invariably go over the 500 MB limit. So, my second question is - What do you guys think is the minimum plan needed for VoIP to work on MTNL connections?Thanks