6bf131c7__x____About_Licenses___DocWiki__Description
[License] webconf [Description] 
The webconf license is defined as follows: If you install the stdsw license, the webconf license limits the number of available standard (ad hoc) web ports on the system. This number may be further limited by the maxstd license. If you install the systemsoftware license, the webconf license limits the number of concurrent participants using the full web meeting room for scheduled or reservationless meetings. This number may be further limited by the maxweb license. Note: If you want all or most users to be able to schedule full web meetings, install an equal number of voice ports and web ports through the voiceconf and webconf licenses. If you do not install either the stdsw license or the systemsoftware license, the webconf license makes the six trial web ports permanent. If you do not install the webconf license, the system can use only the six trial web ports, which expire 60 days after system installation. If you purchase a base software SKU, your order comes with a trial webconf license that makes the six trial web ports permanent after you install the license.
Cisco Unified MeetingPlace Express, Release 2.x -- About Licenses - DocWiki