In response to the destruction caused by Typhoon Yolanda/Haiyan, Viber, a popular multi-platform messaging app, is offering a temporary service called “Viber Out” which lets Filipino users call regular (non Viber) numbers outside of the Philippines for free.
Viber Out is the company’s effort to help Filipinos contact their families abroad and let them know about their current situation.

To call someone using this service, go to any contact in Viber and tap any of the numbers listed next to “Viber Out”. The following is a list of supported destinations:
Landline and Mobile (all numbers):
USA & Canada
UK
China
Hong Kong
India
Indonesia
Korea
Malaysia
Singapore
Thailand
Landline Only (no mobile phones):
Argentina
Australia
Brazil
Croatia
Cyprus
Denmark
France
Germany
Greece
Hungary
Ireland
Israel
Italy
Lithuania
Luxembourg
Malta
Mexico
Netherlands
New Zealand
Norway
Peru
Poland
Portugal
Romania
Russia
Spain
Sweden
Switzerland
Venezuela

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Great idea. Hope people will not abuse this service. After all, this is made especially for those affected by the typhoon.