Java wrapper for the popular chat & VOIP service
Matrix reference homeserver
VoIP SIP and SKINNY quality analyzer and packet / audio recording tool
Connverts RADIUS acccounting messages to ETSI OSP CDRs
Simple and efficient tool for SIP trace filtering
OpenSource Call Center and Dialer System
Graph active VoIP calls on Google Maps.
A P2P Messenger which uses JXTA. It provides secure RSA/AES end-to-end