Hi, <<gnugk.ini>> <<tcpdump.tandberg.eth1>> <<tcpdump.tandberg.eth0>> I've got the latest CVS version to test GnuGK in Proxy mode. I'm not getting the video when a PVX from Intranet call to Tandberg at Internet. The Tandberg 990 MXP is registered at GnuGK in Intranet. The firewall ports are opened, and I can call from PVX to PVX, it works fine. The GnuGK (proxy) has two network interfaces, the eth0 is at Intranet, and the eth1 is a NAT to Internet IP. The eth1 has the same "A class" 10.x.x.x Tanderg ---- GnuGK ------ PVX The call follow this sequence: Admission request - both Admission confirmation - both Q931 setup send - both Q931 setup received - both The PVX call to Tandberg normally, and when I answer the Tandberg call, I get a black screen and after 5 seconds the call is cleared. At logs I can see: Normal call clearing and Normal Drop.... I really don't know what is happening, because I can't see the errors at log. I've attached the Wireshark logs and the Gnugk... Any help will be appreciated a lot !!!!! Thanks a lot Best regards, Leandro