Polycom 3725-76302-001O manual About Cascading, Cascading for Bandwidth

Conference Manager Configuration

Note: Bypass IVR Service Passcode Prompt

Callers to conferences with passcodes (PINs) can bypass the IVR service’s passcode prompting by appending their passcode to the dial string, following the protocol-appropriate delimiter:

•H.323: <vmr number>#<passcode>

•SIP: <vmr number>**<passcode>

See also:

Conference Templates on page 190

Two Types of Templates on page 190

Template Priority on page 191

Conference Templates Procedures on page 216

About Cascading

One of the conference features you can optionally enable in a template is cascading, which makes it possible for a conference to span RealPresence Collaboration Server or RMX MCUs. One of two mutually exclusive forms of cascading can be enabled:

●Cascading for Bandwidth

●Cascading for Size

Note: SIP vs. H.323 Cascade Links

The cascade links between MCUs use H.323 signaling for any conferences containing at least one AVC endpoint.

SIP cascade links are used when:

•There are only SVC endpoints in the conference

•One of the MCUs in the cascade does not support H.323

Cascading for Bandwidth

Cascading a conference across multiple MCUs to conserve bandwidth is especially useful when using WAN links. Participants can connect to MCUs that are geographically near them, reducing network traffic between sites to a single link to each MCU.

Cascading does, however, impact the quality of the conference experience.

If you have a Polycom RealPresence Resource Manager or CMA system in your network, you can enable cascaded-for-bandwidth conferences with the following steps:

1On the Polycom RealPresence Resource Manager or CMA system, create site topology data defining the territories, sites, site links, and MPLS clouds in your network, and the subnets in each site.

2On the Polycom RealPresence DMA system, integrate with the Polycom RealPresence Resource Manager or CMA system to obtain its site topology data. See Resource Management System Integration on page 178.

3On the Polycom RealPresence DMA system, enable cascading for bandwidth in some or all of your conference templates.

If you don’t have a Polycom RealPresence Resource Manager or CMA system, you must define your site topology in the Polycom RealPresence DMA system instead of importing it. See Site Topology on page 278.

Polycom, Inc. 193