Linphone Flexisip Server in Cloudron core
Docker is here: https://github.com/BelledonneCommunications/flexisip/blob/master/docker/Dockerfile
Enables e2e encrypted voice call and conferencing/ video conferencing/ chat messaging/ files exchange. Meaningful add-on to the existing Cloudron STUN/TURN + upcoming JitsiMeet. Issue your own domain-specific SIP addresses. Excellent apps across all platforms.
A "Flexisip Server Build and Install via Docker" guide that is too complex for me!