After adding all the relevant network information in the previous steps, it is now time to enable CAC.
Enabling CAC must be done for the sites in Topology Builder and globally in CSCP or PowerShell.
The following are the six steps to enable CAC in sites:
Start Topology Builder with an account that has the RTCUniversalServerAdmins rights and save the topology file when prompted.
For each site in the topology:
Right-click on the site node.
Select Edit properties.
Scroll down to the Call admission control setting option.
Select the Enable call admission control checkbox, as shown in the following screenshot:
If there is more than one pool in the site, select a pool (in a single pool site, the pool should be selected automatically).
Click on OK.