They are offering unlimited free calls to the following destinations:
Argentina
Australia
Austria
Bahrain
Belgium
Bolivia
Brazil
Bulgaria
Canada
Chile
Colombia
Croatia
Cyprus
Czech Republic
Denmark
Estonia
Finland
France
Germany
Greece
Hong Kong (+mobile)
Hungary
Ireland
Italy
Japan
Kazakhstan
Latvia
Luxembourg
Malaysia
Mexico [guadalajara]
Mexico [mexico City]
Mexico [monterrey]
Monaco
Netherlands
New Zealand
Norway
Panama
Paraguay
Peru
Poland
Portugal
Puerto Rico (+mobile)
Romania
Russian Federation
Singapore (+mobile)
Slovak Republic
Slovenia
South Africa
South Korea
Spain
Sweden
Switzerland
Taiwan
Thailand
Turkey
United Kingdom
United States (+mobile)
Uruguay
Venezuela
*in order to call a person in one of the free destinations, you have to add this person to your contactlist.

How to make use fo this service? As usual download the software provided by them from here. Register with them through the software and enjoy this free service.

[tags] 12Voip, Free Calls to UK, Free Calls to US, Free Calls to Singapore, Free Calls to Malaysia, Free Calls to Australia.[/tags]

Tags: 12VoIP, Free Calls to Canada, Free Calls to Malaysia, Free Calls to Singapore, Free Calls to UK, Free Calls to US, Free calls to Australia