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.
Panasonic KX-NCP, as well as Panasonic KX-TDE are IP-systems using the principle of IP-packet switching and supporting major protocols of IP-telephony. Panasonic KX-NCP offers all benefits and functionality KX-TDE series.