Matrix reference homeserver
VoIP SIP and SKINNY quality analyzer and packet / audio recording tool
VICIdial call center optimization tools, monitoring utilities, and per
ICTCore: Unified Communications Framework for web developers
Open source Fax server software for inbound / outbound internet Faxing
Unified Communications Server
High performance, production quality STUN server and client library
Accent interfaces and controls systems through goals and policies
SIP Video Multiconference Media Server with WebRTC support.
Connverts RADIUS acccounting messages to ETSI OSP CDRs
CMS API Server with web site
SIPURA brand ATA to ncidd gateway
A Murmur-Server Webinterface written in PHP for Mumble
The Agispeedy is an AGI Application Server implemention in asterisk