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.
Global Technology and Communication Systems Limited are fully integrated information and communication technology company with headquarters in Houston, Texas, USA.
We were established to deliver high-speed broadband Internet-based data, voice, and vid