Below is a power point on how to trouble shoot the CZone digital switching system. I went through this training an found the Powerpoint to be very helpful. so I decided to it add it to the FAQ page here.
If you do have any questions on the Power Point or the Czone digital switching system please leave a comment below. Also if you have any experiences troubleshooting the CZone system let me know and I will post them here to help other techs and Czone users out.