Guys Both GnuGk and H323plus CVS now support Direct Media or H.460.18/.19/.23/.24 in both slow and fast connect. These 4 standards work together to allow media to traverse NAT without requiring the media to be proxied. This greatly increases the scalability of video conferencing systems within NAT environments with only a small proportion of media needing to be proxied. I have prepared a not-so technical document which explains Direct Media and how the 4 standards interwork. http://www.h323forum.org/specifications/ I have also released a new version of PacPhone v2,2 (H323plus v1.22 CVS) and a windows installer for GnuGk v2.3.1 (current CVS) and both are available from the PacPhone website (www.pacphone.com <http://www.pacphone.com/> ). Simon