Real-time SDN licenses query support.

[kbreboot]

Anyone familiar with the new feature in 8.0+ release which states in the documentation as follows:
[i]Real-time SDN licenses query support.T-Server can now report how
many SDN licenses are currently available and in use, using the following
key-value pairs in AttributeExtensionsin EventServerInfomessages:
sdn-licenses-in-useand sdn-licenses-available.See Part Two of this
document for details on the use of AttributeExtensionsin a particular
T- Server.
Notes:For information about the new features that are available in your
T-Server in the initial 8.0 release, see Part Two of this document.[/i]

I can't seem to find the [i]Part Two[/i] document.

I want to know how to enable this feature - or is it a normal feature only available on some T-Servers

[Kubig]

I think that is enabled by default. I see these information without any additional configuration on Genesys SIP server. Check docs for your T-Server, if supports that.