SIP Servlet API is the standard java platform for implementing SIP based services in a server environment.
An Java implementation of H.248 Media Gateway Simulator and Media Gateway Controller Simulator
This project aims at providing a Scala based DSL for JavaFX 2.0 API's.
Initial prototype is available a lot more work to be done.
BusSystem for Java Services
the OpenSource Java VoIP and Instant Messaging client
Helper application for remote post services
Biorhythms module for NetBeans