This document explains conditions under which you can receive an error
about an expired license even though your license has not expired.
The information in this document is based on Cisco Unified Call
Services, Universal Edition, and Cisco Unified Call Studio, Universal
Technical Tips Conventions for more information on document
Symptoms: Your voice software reports that your
license has expired, but the expiration date listed indicates that the license
Resolution: An error about license expiration is
almost always related to your system clock. These are the most likely
The voice software detects inappropriate system clock situations (for
example, if the current date is before the date when the license was activated)
and assumes the license has expired in those cases.
In order to fix this issue, set your system clock to the correct time
and restart your voice software.