Just to clarify "Direct Media" IS H.460.18/.19/.23/.24. GnuGk must be compiled with HAS_H46018 and HAS_H46023 switches.
The INI Settings to enable it are [RoutedMode] EnableH46018=1 EnableH46023=1 H46023STUN=stun.ekiga.net,192.168.1.10 H.460.23 sends the endpoint the address of the STUN server on registration and endpoint will automatically test the NAT device with that STUN server. This is automatic in the background. There is no STUN server setting in the endpoint. If you set the STUN server in pacphone then it will automatically disable "Direct Media" and will just use STUN for NAT Traversal. This is not recommended and the reasons are described in the document. STUN does not work for all NAT. H.460.18/.19/.23/.24 works together. The overall aim is to work out a media path that does not require the use of a media proxy (H.460.19). The gatekeeper will formulate a media path solution in the ARQ/ACF phase and then instruct the endpoints (in ACF and Setup) to execute that solution. Yes it is fully automagical of you like. :) The solution is H.323v4 compliant so you should be able to interwork with existing H.323 devices. Simon -----Original Message----- From: Earl [mailto:large.fi...@gmx.net] Sent: Saturday, 26 September 2009 10:57 PM To: GNU Gatekeeper Users Subject: [Openh323gk-users] Direct Media and H.460.18/.19/.23/.24/24a Simon, if Pacphone v2.2 and GnuGK v2.3.1 both support either Direct Media *or* H.460.18/.19/.23/.24 24a? or Direct Media *and* H.460.18/.19/.23/.24 24a? than who / what makes the decision to use Direct Media versus H.460.xx ? Is this automagically determined or does the writer of GnuGK.ini determine this? If GnuGK tells Pacphone to determine type of NAT with STUN test, how does Pacphone do this if the "use STUN checkbox" is not checked and no server entered ? Are H.460.18/.19/.23/.24/24a self-compatible and interoperable such that these protocols can automagically decide among themselves which is the best to use ? Regards, Earl Simon Horne wrote: > > 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 ---------------------------------------------------------------------------- -- Come build with us! The BlackBerry® Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9-12, 2009. Register now! http://p.sf.net/sfu/devconf _______________________________________________________ Posting: mailto:Openh323gk-users@lists.sourceforge.net Archive: http://sourceforge.net/mailarchive/forum.php?forum_name=openh323gk-users Unsubscribe: http://lists.sourceforge.net/lists/listinfo/openh323gk-users Homepage: http://www.gnugk.org/ ------------------------------------------------------------------------------ Come build with us! The BlackBerry® Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9-12, 2009. Register now! http://p.sf.net/sfu/devconf _______________________________________________________ Posting: mailto:Openh323gk-users@lists.sourceforge.net Archive: http://sourceforge.net/mailarchive/forum.php?forum_name=openh323gk-users Unsubscribe: http://lists.sourceforge.net/lists/listinfo/openh323gk-users Homepage: http://www.gnugk.org/
