Modern VoIP PBX, for which we have proceeded in the development of our experience and the experience of our customers. We are decided to not restrict our customers and therefore our offered PBX is already equipped with all the features and its variants differ only in the performance of the hardware. Using VoIP PBX saves the cost of infrastructure for which you already make do with a classical computer Ethernet networks. You do not need to build more and more telephone lines and pay a monthly fee for the physical connection to the network operator's PBX (eg. ISDN2, HTS ...).
VoIPSUN Provider is a robust SIP proxy server for voice service provider. The base is a high-performance SIP proxy server KAMAILIO, which provides SIP client registration and call routing. Processing of RTP streams provides RTPENGINE which supports encrypted traffic of voice packets, NAT and ICE. As mediagateway is used Asterisk latest version 11 (Long Term Support).
VoIPmonitor is open source network packet sniffer with commercial frontend for SIP RTP RTCP and SKINNY(SCCP) VoIP protocols running on linux.