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.
VIET NAM VOIP MARKET PLACE, VOIP PRODUCTS DISTRIBUTOR, IP TELEPHONY SOLUTION AND SERVICE CENTER, SYSTEM INTEGRATION, SOFTWARE DEVELOPMENT, OURSOURCING SERVICE, VIRTUAL OFFICE
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