The IP Office system requires licenses for some features, see Licenses. The license file can be either uploaded manually or pre-loaded onto the System SD card.
How is the system licensed?
•An XML file containing the full set of PLDS licenses is uploaded to the system. The license file is unique to the feature key serial number of the System SD card installed in the system.
•The card's ID number is printed on the card's label after PLDS ID, FK SN or FK depending on the age of the card. On newer cards is a 12-digit number. Older cards may have a 10-digit number. For PLDS licensing, use the 12-digit number. On older cards, for licensing, prefix the 10-digit number with 11.
Minimum License Requirements
For IP Office Essential Edition, the system requires an Essential Edition system license for the specific IP Office release you want it to run.
To upload the license file using IP Office Manager:
1.Within the system configuration click on 
License.
2.The field PLDS Host ID shows the serial number of the System SD card fitted to the system. Check that this number matches the one against which the licenses have been issued.
•The card's ID number is printed on the card's label after PLDS ID, FK SN or FK depending on the age of the card. On newer cards is a 12-digit number. Older cards may have a 10-digit number. For PLDS licensing, use the 12-digit number. On older cards, for licensing, prefix the 10-digit number with 11.
3.Click Add... .
4.For the license type select PLDS and click OK.
5.Browse to the location of the XML file supplied containing the licenses. Select the file and click Open.
6.Continue with the basic configuration or click on the 
save icon to save the updated configuration and then continue.