Osool Telcom Solutions, Inc. strives to make VoIP more mainstream by helping VoIP service providers prepare for the challenges that are just now emerging on the horizon.
Osool helps them do this by enabling them to outsource their complete VoIP back-e
Zahrancall is the world`s leading Internet calling card brand, specializing in prepaid calling card services throughout the world. Distributed through our regional and local Agents and Resellers, Zahrancall`s prepaid calling cards provide customers with a
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