Never ever use Uniconnect for international calling. I had taken one on a recent business trip to China, their prepaid card sim card, which I thought would be economical. And it turned out to be the most expensive plan. The card did not work most of the trip and after repeated calls and waste of my time when it worked I ended up spending the entire credit within 5 minutes into a call. How is its practically possible to run out of 4500/- Rs in 5 minutes. And now when I am calling their customer centres for justification, they have no answer. Pathetic