Java wrapper for the popular chat & VOIP service
Issabel PBX - Unified Communications
Java VoIP Softphone (SIP) (replaced by jfPhone)
High performance, production quality STUN server and client library
Accent interfaces and controls systems through goals and policies
Enterprise telephony recording and retrieval system
H.323 Gatekeeper for VoIP and videconferencing
SE-7100 Series HEVC Encoder
Cress is a comprehensive toolset for graphical service/workflow design
Java VoIP/SIP PBX system (replaced by jfPBX)
Positional Audio Communication for Minecraft with Mumble
Universal Framework to audit Voip protocols's security
Send Asterisk CDR to serial device
CRM system based on vtiger, adapted to Polish companies.