Polycom 2000 Benutzerhandbuch

Cascading enables administrators to connect one conference directly to 

another conference using an H.323 connection, creating one large 

conference. The conferences can run on the same MCU or different MCUs. 

There are many reasons for cascading conferences, the most common are:
•

Connecting two conferences on different MCUs at different sites. 

•

Utilizing the connection abilities of different MCUs, for example, 

different communication protocols, such as, serial connections, ISDN, 

etc....

The link between the two conferences is created when a participant that is 

defined as a dial-out cascaded link in one conference (Conference A) 

connects to the second conference (Conference B) via a special cascaded 

Entry Queue (EQ). When MCU A dials out to the cascaded link to connect 

it to conference A, it actually dials out to the cascaded Entry Queue 

defined on MCU B.

Though the process of cascading conferences mentioned in this section 

refers to conferences running on two different RMX units, it is possible to 

cascade conferences running between RMX units and other MCUs.
Simple cascade links are treated as endpoints in CP conferences and are 

allocated resources according to Table 2-3 on page

. Cascaded links in 

1x1 video layout are in SD resolution.
In HD Video Switching, simple cascade links behave like HD endpoints if 

all HD prerequisites are met - if not, the link is audio only.