VoIP SIP and SKINNY quality analyzer and packet / audio recording tool
High performance, production quality STUN server and client library
Enterprise telephony recording and retrieval system
SIP softphone
H.323 Gatekeeper for VoIP and videconferencing
Simple and efficient tool for SIP trace filtering
Microscopic AGI framework.
Fast CGI-based AsteriskPBX cluster administration tool.
GNU Telephony Services and Applications
Small and effective program for SIP traces anonymization
Go to github.com/vlm/asn1c for the latest version.