Summary
On a video system, Key + Bell does not clear out the programming on the tenant, instead of a short beep an error tone sounds.
Solution
Flip all of the dip switches on the back of the tenant station down and then cycle power to the GT-BC.
When Trying To Clear Tenant Station Registration an Error Tone Sounds
On this page
An Expanded System Failing To Enter Programming Mode
Clearing and Reprogramming a Tenant Station
Deleting an Apartment Number from a Digital Modular Entrance Panel
Error Code U010 or N010 in GT Setup Tool
GT-DMB-N Resident Information Programming
GT-NS Reset Procedure
Resetting GT-DMB-N Passcode
Unable To Transfer From Entrance or Guard, or Transfer via Setup Tool
Unresponsive GT-NS or GT-DM Digital Directory
When Trying To Clear Tenant Station Registration an Error Tone Sounds