How can i tell if the clock patch has been installed on my system?

The following is listed under System Information
Product: EliteMail LX (for U40)
Version: 2.0.2.0
System ID: 000164121134350884177322224
Point Release: 0


Voice Driver: 3.4.31-3
Database: 7.50
Firmware: 4AAA 1.32.0001


OS: Linux OS v7.2 Kernel 2.4.7-10
OS Build: v7.2.8.1