I know all the posts I have seen say this phone is not supported on SIP, and it isn't a supported 3cx phone but I did set it up on an earlier version of 3cx and all of the features worked. Running version 16 now and it is getting an IP from DHCP but it isn't registering, and I suspect as it isn't a supported phone its probably not provisioning either. I have tried various other phone setups but so far not found one, and can't find a way of provisioning an unsupported phone. I did have a config file that worked but I don't have it any more. Its a great phone with lots of features so if anyone can advise I would appreciate it. It is seeing date and time and all parameters from web interface but I don't thing it is seeing 3cx, although it is seeing the address of my 3cx server.