Open your PBXware address in your browser.
Enter PBXware login details
Click Admin Settings button in left navigation menu
Click on Licensing in left navigation menu
A pop-up window will appear on your screen.
Enter your PBXware root password
If you only need to refresh the current PBXware license just click Save button, otherwise enter new PBXware license key in Licensing field and click on the Save button.
After a couple of seconds Your PBXware will be re-licensed.