RTPengine Janus mode
Sipwise RTPengine is a very fast media proxy to bridge two different worlds: WebRTC and VoIP.It supports a variety of encryption methods (plaintext RTP, SRTP via SDES and DTLS, ZRTP as passthrough) with a number of optional features, such as ICE, RTP/RTCP multiplexing (RTCP-mux), transcoding between several popular audio codecs, and unbundling BUNDLE’d media streams….