Patent ID: 7416058

Claim:
A method of operating an elevator installation having an elevator control for controlling the elevator installation, wherein the method comprises the steps of: a) implementing a plurality of functions for controlling the operation of the elevator installation into the elevator control, which implementation is accomplished by a provider of the elevator control, and whereby at least one optional function is implemented into the elevator control by the provider, which at least one optional function is activatable at a time of configuring the elevator control and by activation can be made available for control during the operation of the elevator installation; b) configuring the elevator control according to the requirements of the operator of the elevator installation, whereby the at least one optional function is activated; c) starting and operating the elevation installation; and d) deactivating the at least one optional function automatically at an instant in time during the operation, wherein the at least one optional function is available for multiple uses prior to deactivation and after the deactivation the at least one optional function is no longer available for control of the elevator installation in operation.