BlueVia SDK for .NET Telefónica is one of the world’s leading integrated operators in telecommunications, providing communication, information and entertainment solutions. With a presence in Europe, Africa and Latin America, Telefónica operates in 25 countries and has 290.5 million customers. Telefónica has more than 1.5 million direct shareholders and has one of the most international profiles in the sector with more than 60 percent of its

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