Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.
This new release has been tested with more SIP IP-phones. It now supports installation as a service (Win32) and contains fixes for SRV records and address resolutions support.
This release fixes an interoperability issue with MSN messenger and
corrects the automatic detection of IPs on Linux. To avoid looping,
you can now declare a list of virtual hostnames instead of only one.
This version comes with 7 plugins which can do authentication, SIP registration, and which can act as a SIP stateless proxy or redirect server. Stateful mode and a Windows version are not yet available.