Open source Fax server software for inbound / outbound internet Faxing
Unified Communications Server
Callflow Sequence Diagram Generator
Baresip is a modular SIP User-Agent with audio and video support
survey research software integrate for CATI/ CAWI/ CAMI survey
Graph active VoIP calls on Google Maps.
Optimized and cross platform SMPTE 2022 FEC library in C, Python, Java
C++ SIP stack based on Chrome source code