Issabel PBX - Unified Communications
ICTCore: Unified Communications Framework for web developers
The most affordable CRM system according to Capterra
High performance, production quality STUN server and client library
Blocks unwanted calls using caller ID and a modem
Accent interfaces and controls systems through goals and policies
H.323 Gatekeeper for VoIP and videconferencing
SE-7100 Series HEVC Encoder
SIP Video Multiconference Media Server with WebRTC support.
Java VoIP/SIP PBX system (replaced by jfPBX)
CRM system based on vtiger, adapted to Polish companies.
Web interface for OpenSIPS