Pingo is a company that offers a virtual calling card with really low rates. They have a number of different plans including Pingo Mobile which is designed to save you money on calling international cell phones. They also offer a Pingo Business plan which allows you to buy a long distance service directly from iBasis, one of the largest carriers of international phone calls.

You can currently use Pingo in 35 countries including Australia, the United Kingdom, France and Germany. When you sign up you receive $5 worth of free calls. They currently have a special phone card discount coupon if you quote the code ppp3. This entitles you $3 off at Pingo. They offer come of the best competitive rates worldwide including a cheap calling card to India. Their international calling cards have a small monthly fee of 98 cents a month but no additional fees. Their service also includes Pingo RateWatcher which means they are always looking for ways to reduce their costs and pass these savings onto their customers. In additional if you can receive a $5 bonus for every friend you refer to Pingo, and if you refer three friends they will give you an added $5 bonus, so you get $20 worth of calling time.