Polycom RealPresence Group 500-720p

Definition: High Definition 
Resolutions: HD (1280 x720p)
Frame per second: 5–60 fps (up to 1080p resolution at 60 fps)
Bandwidth: Max. 6MB 
HD Conference Phone (POTS): Nil
Multipoint: 6-way SD, 4-way HD multipoint 
Advance Presentation (People on Content): YES