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Robust Open Source (GPL) SIP (RFC3261) server implementation. Among features: VoIP SIP registrar/proxy/router/application server, TLS secure communication, AAA, ENUM, LCR, load balancing, NAT traversal, OSP, CPL, SNMP, SIMPLE IM&Presence, DNS failover. The source code for development is hosted now in GIT at http://sip-router.org
OpenSIPS (Open SIP Server) is a mature Open Source implementation of a SIP server. OpenSIPS is more than a SIP proxy/router as it includes application-level functionalities. OpenSIPS, as a SIP server, is the core component of any SIP-based VoIP solution. With a very flexible and customizable routing ... [More]
Kamailio is the result of merging SIP Express Router (SER) with OpenSER. It is an open source project managed by its community, released under GPLv2, and focusing to build a flexible and rock solid SIP server. Among features: full RFC3261 implementation, support for IPv4, IPv6, UDP, TCP, TLS ... [More]
The Sippy RTPproxy is a high-performance software proxy for RTP streams that can work together with SIP Express Router (SER), OpenSER or Sippy B2BUA. Originally created for handling NAT scenarious it can also act as a generic media relay as well as gateway RTP sessions between IPv4 and IPv6 ... [More]
HOMER is a robust, carrier-grade, scalable SIP Capture system and Monitoring Application with HEP/HEP2, IP Proto4 (IPIP) encapsulation & port mirroring/monitoring support right out of the box, ready to process & store insane amounts of signaling with instant search, end-to-end analysis and ... [More]
Web management interface for SIP Routing engine (OpenSER, Kamailio, SER, SIP-Router) - handle subscribers, ACL, LCR and load balancing, monitoring charts, xmlrpc communication with SIP server
Development bits and hacks from QXIP Team. QXiP (Quick-SIP) is a free, open SIP and iNUM Video VoIP Network.
CarrierClass.net is the Free Software, large-scale, highly-available communications system for the enterprise, higher-education, non-profit, and governmental entities.