
When you place a call through Viber, you do so using your friends' regular phone number. All that is required is the app itself there is no configuration required and no need to build up a list of contacts.


This is true of Viber but it does have one big advantage. The problem with any such app is that it is reliant on the people you need to get in touch with having the same app installed. Viber is a free VoIP app in a similar vein to Skype that can be used to send and receive free phone calls and text messages with other Viber users.

But even if you do have an iPhone, call can be expensive depending on the tariff you are using. If you have an iPhone, you have all of the features that can be found in Apple's iPod with the added benefit of being able to make phone calls.
