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.
Mini Asterisk GUI
A handy Web GUI with supportive documentation and quick learning cycle is called Mini Asterisk. Existing analog jacks and IP phones are defined automatically, and no procedures of Asterisk configuration are required.