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] networks. RTPproxy was developed by Maxim Sobolev and now is being actively maintained by the Sippy Software, Inc.
The RTPproxy supports some advanced features, such as remote control mode, allowing building scalable distributed SIP VoIP networks. The nathelper module included into the SIP Express Router (SER) or OpenSER as well Sippy B2BUA allow using multiple RTPproxy instances running on remote machines for fault-tolerance and load-balancing purposes. [Less]
WebRTC is an open source project that enables web browsers with Real-Time Communications (RTC) capabilities via simple Javascript APIs. The WebRTC components have been optimized to best serve this purpose.
WebRTC implements WHATWG's proposal for video conferencing on the web.
The reSIProcate components, particularly the SIP stack, are in use in both commercial and open-source products. The project is dedicated to maintaining a complete, correct, and commercially usable implementation of SIP and a few related protocols.
ReSIProcate is ideally suited to individuals or
... [More] companies that are implementing one of the following SIP applications:
* Phones (for example, embedded)
* Softphones (any platform)
* Gateways
* Proxies
* B2BUAs
* Instant Messaging/Presence Servers or Clients [Less]
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
... [More] client/server
Websockets
Jitter-buffer
Async I/O (poll, epoll, select)
UDP/TCP/TLS/DTLS transport [Less]
libsrtp is a library implementing Secure RTP, the Secure Real-time Transport Protocol. RTP is used for Voice over IP (VoIP) as well as audio and video streaming; SRTP adds confidentialtiy and authentication.
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