Take a backup of the old license file. Uninstall the old License file from Weblm server on the VPMS. Then install the new license file.
Steps:
First, copy the old license files to the /tmp of the vpms
On the Voice Portal Management System Command Line Interface as a root user:
1. cd /opt/Tomcat/tomcat/webapps/WebLM/licenses
2. cp * /tmp
3. cd /tmp
4. ls -l (check if all the license files are copied to this directory)
Once the above steps are performed. Login to the WebLM server Web Administration Licensing page:
1. Click uninstall license to uninstall the old license file.
(choose the correct product, if its VP then select VP)
2. Click on install license, navigate to the path of the new license file and select it
3. Click on install button
4. After installing it should show the max ports.