This document describes how you can verify that a TelePresence Server is used in a call.
How do I determine if a TelePresence Server is used in a call?
Some calls between telepresence endpoints do not require the TelePresence Server. However, if you have more than two Cisco TelePresence T3 systems and one single-screen system in a conference then the call will be placed on the TelePresence Server.
In order to check whether a call runs on the TelePresence Server, log in to the web interface and choose Conferences. Click on a conference in order to see additional information, such as the endpoints in the conference.