As a 41+ year veteran of selling/installing telephone systems, I've come to the conclusion that if you own a system (telephone, audio, security, etc...), you deserve to know everything about it. That being said... I share all the X16 codes with my Xblue customers. If they screw up, it's on them. End users can call the manufacturer in Lenexa if you want to know the hidden codes. You must own the system.
