One of today's keynote announcement was that Ericsson is contributing their SIP Servlet container to the GlassFish community [1], [2], [3]. We welcome Ericsson to the community and we look forward to making this available to the wider internet community.

This is the first open source SIP Servlet implementation and has the potential of having a big impact on the availability of communication services in the internet. Check Sreeram's blog. The actual project site is SailFin, including a live code repostory.