Hi there, I have been trying the GNUGK Proxy extensively the past days. Hacking the code, I was able to establish a phone call from an unregistered Endpoint to a GW that is inside another GK's zone. That way, my proxy works only as a proxy (GW) and does not work as a GK. Check out the graph: Planet IP-Phone <------> GNUGK "Hacked" Proxy <-----> MAX TNT GW That way it worked ok for both fast start and non fast start procedures. After that I tried replacing the Planet IP-Phone with a Cisco GW. That is when I had the following problem: After the MAX TNT GW receives the "facility TerminalCapabilitySet" message, it responds with an "empty TerminalCapabilitySet" and after that sends a "ReleaseComplete" message, with ternination cause value == 42 (Switching Equipment Congestion). Find attached the messages flows for the 2 cases mentioned above. One thing that catched my attention was that for the IP-Phone, the first "OpenLogicalChannel" message is sent by the MAX TNT Gw. And for the other case, the Cisco GW is the first one to send an "OpenLogicalChannel" message. I am not an expert in the H323 protocol. So, if anyone could give me an idea of what is going on here, I would really appreciate your help. thanks in advance, Pablo Salinas
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