Cutlass is a cross-platform system for secure peer to peer communication, oriented towards small groups. It provides VoIP, IM and file transfer. A major design goal is to be easy to use, even by non-security conscious users.
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.
Various improvements to the VoIP subsystem have been made which should
improve reliability and sound quality. A bug in handling reconnections
from the same user has been fixed. Several build and installation
bugs have also been resolved, as have a number of problems in the GTK
interface.