Administrator’s Guide for Polycom HDX Systems
3–40 Polycom, Inc.
HD and SD Multipoint Calls
With the MPplus 4 option, the following systems can host HD multipoint calls
that include up to four sites:
• Polycom HDX 9006 systems
• Polycom HDX 9004
• Polycom HDX 9002
• Polycom HDX 8000 series
• Polycom HDX 4500
With the MPplus 4 option, the following systems can host SD multipoint calls
that include up to four sites:
• Polycom HDX 9001
• Polycom HDX 7000 HD systems
With the MPplus 4 option, the following systems can host up to four sites in a
SIF/CIF multipoint call:
• Polycom HDX 7000
• Polycom HDX 4000
The HDX system hosting the call transmits 720p and receives 640x368 while
the other endpoints transmit 640x368 and receive 720p. During this type of
four-way HD or SD multipoint call, all sites can be displayed in continuous
presence.
With the MPplus 8 option, Polycom HDX 9004 systems can host multipoint
calls that include up to eight sites. The HDX system hosting the call transmits
720p and receives 432x240 while the other endpoints transmit 432x240 and
receive 720p. Polycom HDX 9004 systems can display all eight sites in
continuous presence, but only when the call is in HD. If for any reason the call
is not in HD, only four sites or fewer can be displayed. For HD continuous
presence, Polycom recommends setting Multipoint Mode to Discussion.
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