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User’s Guide for Polycom HDX Systems and the Polycom Touch Control
26 Polycom, Inc.
Including Multiple Sites in Calls
During a multipoint call, multiple sites can see and hear each other. You can
also share content in a multipoint call, just as you can in a point-to-point call.
All systems can participate in multipoint calls. To host multipoint calls, your
system must have optional software installed. You can host multipoint calls
using a video conferencing system with multipoint capabilities, or you can use
a bridge such as the Polycom RMX 1000, Polycom RMX 2000, or Polycom
MGC™.
Placing a Multipoint Call
How you place a multipoint call depends on whether you’re using a Polycom
HDX system with multipoint capabilities or a bridge such as the Polycom
MGC or Polycom RMX conference platform. The number of sites allowed in
the call is determined by the capabilities of the system or bridge hosting the
call. The call can include any combination of IP H.323, SIP, ISDN, V.35/Serial,
and audio-only endpoints, although some ISDN systems might not be
configured to allow mixed IP and ISDN calls. For more information about call
types, refer to Types of Video Calls You Can Make on page 8.
To place a multipoint call by adding sites to a call:
1 Call the first site.
2 When the call connects, touch Add Call from the call screen.
3 Place a call to the next site. For more information, refer to Placing a Call
on page 4.
4 Repeat steps 2 and 3 until all sites are connected.
To place a multipoint call using a directory group:
1 From the Home screen touch Search the Directory.
2 Touch a group folder in the directory list.
Depending on how your system is configured, it attempts to call the group
using a pre-defined list of call types. Contact your system administrator
for more information.
To place a cascaded multipoint call:
1 Call a group from the directory, or place calls one at a time to several
other sites. For more information, refer to Placing a Call on page 4.
2 Ask each site to call additional sites.
If your multipoint calls disconnect after 5 minutes, your system might be set up for
the multipoint trial. To do untimed multipoint conferences, a multipoint key must be
installed. Contact your administrator for assistance.