The ControlKey Lodging manual offers portions of this older guide including Guest Check-Out Procedures. Additional sections include the Night Audit Procedure and Administrative Reports.
Here are the Control-Key accounting system manuals and module updates.
ControlKey PL Series Software Module Update
ControlKey PL Lodging Reference Manual Update
Antiquated Hotel systems that were installed years ago, long having been discontinued
should be replaced. We doubt any of these systems are still in place,
however we do keep this manual available for anyone who may still find
themselves with a system still in operation.
Now is a great time to replace these antiquated systems with a new hotel phone system.
Control Key Corporation, a manufacturer of telephone accounting systems and software was founded as start-up and as a joint venture with NEC America.