Defining AVC-Based Conference Profiles

 

 

 

 

New AVC CP Profile - General Parameters

 

 

 

 

Field/Option

Description

 

 

 

 

 

 

Line Rate

Select the conference bit rate. The line rate represents the combined video, audio

 

 

and Content rate.

 

 

The default setting is 384 Kbps.

 

 

Notes:

 

 

This field is displayed in all tabs.

 

 

The maximum line rate at which ISDN endpoints can connect to a conference is

 

 

768 kbps.

 

 

Downspeeding is not supported. As a result, ISDN calls will consume

 

 

bandwidth resources according to the Line Rate specified in the conference

 

 

Profile. For example, if the conference Line Rate is 512kbps, ISDN calls

 

 

connecting at lower line rates (256kbps) will still consume the bandwidth

 

 

resources of 512kbps calls. As a result, if bandwidth resources are fully

 

 

consumed, ISDN calls may be rejected before media card resources are

 

 

exhausted.

 

 

The Collaboration Server supports AVC-CP conferences at line rates of up to

 

 

6Mbps:

 

 

For Dial-in calls only.

 

 

For use with HD1080p30/60 and HD720p60 resolutions.

 

 

To prevent excessive bandwidth usage and resource consumption, the system

 

 

will ignore a Line Rate of 6Mbps, substituting line rates appropriate to the

 

 

Maximum Resolution defined.

 

 

For MPMRx and RMX1800:

 

 

Up to 1Mbps for SD30, CIF60 and below

 

 

Up to 4Mbps for SD60, HD720p30

 

 

Up to 6Mbps for HD720p60, HD1080p30, HD1080p60

 

 

For MPMx:

 

 

Up to 2Mbps for SD30, CIF60 and below

 

 

Up to 4Mbps for SD60, HD720p30 and above

 

 

(RMX1800-0 maximum AVC-CP conferencing line rate: 4Mbps.)

 

 

If ‘Maximum Resolution’ is specified in ‘Video Quality Parameters’, the line rate

 

 

might be modified automatically according to table ‘Maximum negotiated line

 

 

rate for resolutions’.

 

 

If ‘Maximum Resolution’ is specified in ‘Video Quality Parameters’, the line rate

 

 

might be modified automatically according to the Maximum Negotiated Line Rate

 

 

for Resolutions table.

 

 

 

 

 

Conferencing Mode

Select the required Conferencing Mode. The selection affects the available tabs

and their fields.

Notes:

This field is displayed in all tabs.

If the selected Line Rate is higher than 4Mbps, and Conferencing Mode is

modified to SVC Only or CP and SVC, the line rate is dropped to match SVC-enabled conferencing rates.

Polycom®, Inc.

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Polycom 1500/1800/2000/4000 manual New AVC CP Profile General Parameters, Field/Option Description