H323Plus is the continuation of the OpenH323 project and aims to maintain full source code compatibility while adding the latest H.323 features.
License: MPL
Website: https://www.h323plus.org
Support: https://www.willamowius.com/h323plus-support.html
API documentation: https://www.h323plus.org/api/annotated.html
Tutorial: https://toncar.cz/openh323/tut/