How to show name of the end user when joined a conference

Problem Description : Howto show name of the end user when joined a conference

Analysis Progress :

Atthe endpoint side ( SystemSettings > Display > Site Name > Site name [Example : TE30] )

Root Cause : Sometimes customer confuse which endpoint / side is joined the conference

Solution Description : After set the site name at endpoint side, every end user can clearly see who joined the conference.