VoIP SIP and SKINNY quality analyzer and packet / audio recording tool
Unified Communications Server
A command line utility for remote controlling Polycom VVX IP phones
Simple and efficient tool for SIP trace filtering
An administration web interface for Mumble VoIP servers in PHP
Baresip is a modular SIP User-Agent with audio and video support
survey research software integrate for CATI/ CAWI/ CAMI survey
Optimized and cross platform SMPTE 2022 FEC library in C, Python, Java
C++ SIP stack based on Chrome source code