I have looked in the manual and followed all instructions. When I'm on a call, I hit the transfer button and type in *01, and I receive a response that , "Call forbidden by Administrator." I have purchased a license for 3CX and I am not using the free one, as most of the other features that come with the pay for version are working fine. I have Aastra 6753i phones, and attempted to use the park/pickup options on the programmable keys, and I get no response either. I getting frustrated because I know when I figure this out it's going to be blantantly obvious. I don't know what else to try. I can transfer to extensions, but just can't park a call.