I am building a sip based appliance and I am trying to get it to work with 3CX. I am sending a registration without Password and ID. 3CX sends me a RegAuthChallenge event (which it should). I then send it a the registration parameters with username and password. Then I get a message that Registration has failed. I look in the Sever Activity Log and there is nothing in there. No mention of any phone trying to register or why that phone failed. No mention of any events at all regarding that phone or its ip address and that is with Verbose checked along with the others. Is there some way to get more logging details?