Hi Olivier, If your friend also has a static IP, you should be able to define each GK as a neighbor to the other. However, you should only need one GK for a small network. Just have your friend's endpoint register to your GK at its 82.233.x.x IP and he should be able to call you. After he forwards appropriate ports in his NAT, you should also be able to call him. Post some details if it doesn't work. If your friend also is on Free, you should be able to call each other without cost via Free's MGCP-based VoIP, without using gnugk at all :) --Stewart -----Original Message----- From: Olivier.Valentin@xxxxxxx [mailto:Olivier.Valentin@xxxxxxx] Sent: Monday, February 14, 2005 8:25 AM To: openh323gk-users@xxxxxxxxxxxxxxxxxxxxx Subject: Two firewalled networks I can't achieve a call and I wonder if it is really possible; here is the topology: Me----firewall/nat/gnugk-----------firewall/nat/gnugk---------my friend The documentation says: "to call somebody that is firewalled, you have to register to its gk and know its alias" but I already have my gk to register to... Olivier ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________________ List: Openh323gk-users@xxxxxxxxxxxxxxxxxxxxx Archive: http://sourceforge.net/mailarchive/forum.php?forum_id=8549 Homepage: http://www.gnugk.org/