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.
Big Allo is a global provider of Internet telephony services.Using any of our products, you can place and receive calls through any Big Allo product via the Internet by using Voice over Internet Protocol (VoIP) technology. Through its cutting-edge solutio
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