Given the following:
Cisco TelePresence endpoint A: CTS-3000

Cisco TelePresence endpoint B: CTS-1000

Cisco TelePresence endpoint C: CTS-1300

Cisco TelePresence endpoint D: CTS-1000

For a multipoint meeting between these endpoints, only endpoint A calls in.
If this is the only meeting currency active, how many segments are being installed on the Cisco Telepresence Multipoint Ser?