https://www.pistack.xyz/tags/rtpengine/ Recent content in Rtpengine on Pi Stack Hugo en-us Wed, 03 Jun 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-06-03-self-hosted-voip-media-codec-transcoding-freeswitch-rtpengine-guide/ Wed, 03 Jun 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-06-03-self-hosted-voip-media-codec-transcoding-freeswitch-rtpengine-guide/ <h2 id="introduction">Introduction</h2> <p>VoIP media processing — the real-time conversion of audio codecs between different endpoints — is one of the most CPU-intensive workloads in telecommunications infrastructure. When a SIP call connects a G.711 leg to an Opus leg, or bridges WebRTC (Opus) to a traditional PSTN trunk (G.711), a media processor must transcode the audio in real time with sub-20ms latency to maintain call quality.</p>