VIVA offers IP based Converged Communications Solutions. You may contact VIVA for SIP Trunking, IP PBX & PSTN integration, MS OCS & IP PBX integration, Managed VoIP and ''''Secure'''' VoIP.
SysMaster Corporation is the largest VoIP billing and call routing solution company in the world with the most VoIP business platform installations. Utilizing SysMaster equipment providers deliver high-quality calling solutions for more than 100 million c
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