...Supporting applications written in AJAX, Java, Flash, & Server-generated HTML, it lets applications across domains work together for the users via a familiar window GUI delivered via web browsers.
JCPPhone is a cross platform VoIP client written in JAVA and C++. The GUI is in JAVA and uses JNI to implement the h323 stack based on OpenH323. It compiles and runs on Linux, and Windows.
Compatible with netmeeting, gnomeeting, cphone, and any H323 Cli