Libre is a portable and generic library for real-time communications with async IO support and a complete SIP stack with support for SDP, RTP/RTCP, STUN/TURN/ICE, BFCP and DNS Client.
Features
SIP Stack (RFC 3261)
SDP
RTP and RTCP
SRTP
DNS-Client
STUN/TURN/ICE
BFCP
HTTP-stack with client/server
Websockets
Jitter-buffer
Async I/O (poll, epoll, select)
UDP/TCP/TLS/DTLS transport
Commercial Use
Modify
Distribute
Place Warranty
Hold Liable
Use Trademarks
Include Copyright
Include License
These details are provided for information only. No information here is legal advice and should not be used as such.
30 Day SummaryNov 28 2025 — Dec 28 2025
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12 Month SummaryDec 28 2024 — Dec 28 2025
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