Mitel superconsole 1000

Question

We have an older mitel phone system for our hotel. It has a superconsole 1000 at the front desk. The console shows that one of the extensions is "LOCKED" We have tried clearing it from the console but cannot figure out how to do it. The result is that our guest in the room with that extension cannot make or receive calls. We have consulted the console manual and it does nto say how to fix the problem.

Any ideas on how to clear it?