I have installed on 11.0.2 and 3.0 Server edition recently and had no problem getting h323 to happen. I have not modified the 46xxx file and have only changed sip settings in the phone to the IPO (500v2), set to tcp, set proxy to manual and port 5060. What am I not seeing here? If the secret is in the 46xxx file then I want to be a minimalists about it. thanks in advance.