VoIPong - Voice over IP ( VoIP ) sniffer and call detector

"What is VoIPong

VoIPong is a utility which detects all Voice Over IP calls on a pipeline, and for those which are G711 encoded, dumps actual conversation to seperate wave files. It supports SIP, H323, Cisco's Skinny Client Protocol, RTP and RTCP.

It's been written in C language for performance reasons, proved to be running on Solaris, Linux and FreeBSD; though it's thought to compile and run on other platforms as well.

On a 45 Mbit/sec actual network traffic, it's been verified that VoIPong successfully detected all VoIP gateways and the VoIP calls. CPU utilization during the run has been found ranging between 66% - 80% on a 256MB RAM, Celeron 1700 Mhz Toshiba notebook."