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.
We are a manufacturer that R&D and professional manufacturing VoIP Terminal. There have VoIP Phone, VOIP GSM Gateway, VOIP FXS Port Gateway, Cross-Network Gateway RoIP , PSTN Bypass Gateway. recorder box. For more, welcome to our website:www.c
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