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 ------------------------------------------------- envoyé via Webmail/IMAG ! ------------------------------------------------------- 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_ide95&alloc_id396&opÌk _______________________________________________________ List: Openh323gk-users@xxxxxxxxxxxxxxxxxxxxx Archive: http://sourceforge.net/mailarchive/forum.php?forum_id?49 Homepage: http://www.gnugk.org/