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