A user wants to use the One Button to Push feature on a Cisco TelePresence System 500-32
video endpoint. Which configuration tool should be used to allow the One Button to Push feature
to work?

A.
Cisco Unified Communications Manager server, phones, devices, One Button to Push

B.
Cisco Gigaswitch Router, Call Manager Express, One Button to Push

C.
Cisco TelePresence Manager Suite server, new conference, set Conference type to One
Button to Push

D.
Active Directory server, users, new conference, One Button to Push

E.
Cisco TelePresence Video Communication Server, new conference, calls, One Button to Push