VoIP SIP and SKINNY quality analyzer and packet / audio recording tool
Web based system for Computer Assisted Telephone Interviewing (CATI)
VICIdial Contact Center Suite
Unified Communications Server
Multi user address book application accessable through the web.
Cress is a comprehensive toolset for graphical service/workflow design
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
CRM system based on vtiger, adapted to Polish companies.