This is one of those sites which help us to call up our friends and relatives in our natives through the internet.This enables calling up landlines and mobiles which also ensures there is good connectivity.Some destinations are also free of cost and it comes in handy when you want to talk to someone very urgently over phone .All this requires is an internet connection to start the conversation and then you can proceed to talk as long as the balance exists.Incase you are driving towards a destination but you want to talk to someone back in India(say you are from US), then you can call up your friedn to dial to the two numbers which will connect you to the desired individual over phone though you dont have access to the internet during that time.