TruPhone is an VOIP service which can be done using a computer or an iPhone. I have been using this for a long time. Recently TruPhone announced a power package for power users. If you have to make heavy international calls, you can go for this package.
With TruPhone Unlimited, you need to a fixed monthly charge of US$ 40 and you can make unlimited calls to the following countries
Africa
Mayotte, Niger, Nigeria, Rwanda, South Africa, Uganda
Asia & Pacific
American Samoa, Australia, Bangladesh, China, Guam, Hong Kong, India, Indonesia, Japan, Korea (South), Macau, Malaysia, Mariana Islands, Mongolia, Pakistan, Singapore, Sri Lanka, Taiwan, Tajikistan, Thailand, Turkmenistan, Uzbekistan
Europe
Austria, Belgium, Cyprus, Cyprus (North), Denmark, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Netherlands, Poland, Portugal, Russia, Spain, Sweden, Switzerland, UK, Ukraine
Middle East
Iran, Israel, Kuwait
North America
Canada, Mexico, USA
South and Central America
Antigua & Barbuda, Argentina, Aruba, Brazil, British Virgin Islands, Cayman Islands, Colombia, Guatemala, Montserrat, Netherlands Antilles, Panama, Paraguay, Trinidad & Tobago, Venezuela
Calls to landlines and mobile phones in these countries are included in the TruUnlimited Mobiles Plan.
