Viber's main source of revenue is selling Viber Out stickers and services
during a visit to the company's headquarters in vietnam, mr. talmon marco, viber's ceo, shared that vietnam is one of its strategic markets.
Tags : viber out
Viber launches Viber Out, allowing calls to any fixed and mobile number
today, the free messaging and calling service on viber smartphones introduced a new feature called viber out. this feature allows users to make calls from viber to any fixed or