Bilal I assume the IP Phones are behind the same NAT with GnuGK on the outside of the NAT. This gets very ugly if these phones don't support H.460.18/.19 Even better if they supported H.460.23/.24/.24A as all you would need to do is just enable them in GnuGK. :) Since they are dumb IP phones we can ignore that. The IP phones must have different TCP listening ports (Change one to 1721) then port forward 1720,1721 to the appropriate device IP address in the router. Set in GnuGk [RoutedMode] SupportNATedEndPoints=1 [Proxy] Enabled=1 ProxyForNAT=1 ProxyForSameNAT=0 This should allow the 2 IP phones to call each other without having proxy the media through the gatekeeper. The media will go directly between them. Something to consider, Some routers these days ship with an H.323 ALG built in which assist getting H.323 to work behind a NAT, nice idea but sometimes bad execution. I have a NETGEAR device which has one and I can't switch it off and no matter what I did I was unable to get 2 H.323 devices to work behind the same NAT (even with .18/.19/.23/.24). In the end I added a (2) in front of both the local endpoint TCP listening port (1720 became 21720) and the gatekeeper RAS address (1719 became 21719) and was able to bypass it successfully. Simon -----Original Message----- From: bilal ghayyad [mailto:bilmar_gh@xxxxxxxxx] Sent: Friday, 4 September 2009 11:58 AM To: openh323gk-users@xxxxxxxxxxxxxxxxxxxxx Subject: Two endpoin behind NAT need to call each other Hi List; I have two end points (IP Phones), both of them behind NAT, and need to let them to talk to each other via the gnugk, what are exactly needed to be done? 1) Do I need to do port forward configuration on the router? To which ports? 2) What the best settings to be done on the gnugk? Regards Bilal ---------------------------------------------------------------------------- -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________________ Posting: mailto:Openh323gk-users@xxxxxxxxxxxxxxxxxxxxx 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/ ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________________ Posting: mailto:Openh323gk-users@xxxxxxxxxxxxxxxxxxxxx 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/
