The two MCU's can be cascaded to handle one large conference of 16 stations. Multiple conferences can be configured as long as the total number of ports or total bandwidth capacity of the MCU's are not exceeded. If all stations were running at 768Kbps rather than 384Kbps, then a single MCU could support only 4 stations. If they run at lower speeds, more stations could be accommodated. It should be noted that all stations on a given conference must run at the same speed.
Different conferences can run at different speeds.
This is all pretty complex, and one of the reasons we have found that it was best for all stations to standardize on 384Kbps. In the future, manufacturers may add a speed-matching feature that would allow mixing of stations running at different speeds, but not for now. To view the calendar of scheduled video conferences, click here . To schedule a conference using the CIC MCU's, fill out this form .