Polycom 8 manual Option, Description, 10-12, Transcoding and Continuous Presence - the line

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Transcoding and Continuous Presence - the line

Chapter 10 - Conference Templates – Full Parameters View

Table 10-3: Basic Conference Parameters

Option

Description

 

 

Line Rate

Specify the transfer rate in Kbps.

 

Video Switching - you must select the highest

 

transfer rate common to all participants. For

 

example, if two participants can connect at a transfer

 

rate of 384 Kbps and one participant can connect at

 

a transfer rate of 128 Kbps, set the Line Rate to 2B

 

or 128 Kbps (2B in Bonding mode). In a conference

 

with participants from mixed networks (ISDN and

 

H.323), the line rate defined for the ISDN participant

 

is the line rate that will be used for the H.323

 

participant. The line rate currently supported for

 

H.323 is E1. In such a rate, the number of H.323

 

participants supported by the H.323 Network

 

Interface module is reduced by half from 12 to 6

 

participants.

 

Transcoding and Continuous Presence - the line

 

rate has to be defined for each of the participants

 

separately. The settings in this field apply only to

 

those participants whose Line Rate was set to Auto.

 

In such a case, set the conference line rate to the

 

highest transfer rate common to all participants.

 

Maximum transfer rate in Transcoding and

 

Continuous Presence modes is 1920 Kbps (E1).

 

Software Continuous Presence - the Line Rate is

 

set for conferences and represents the transmission

 

rate from the MCU to the endpoint (combined video

 

rate and audio rate). For more details regarding the

 

Line Rate settings for Software CP conferences, see

 

MGC Manager User’s Guide Volume II, Chapter 1,

 

Version.

 

Note:

 

The high line rate transmission is enabled with the

 

standard video card (version 1.43 and up) or with the

 

Video+ card. The line rate of incoming ISDN/H.323

 

calls can be automatically detected and the

 

participant can be connected according to his/her

 

capabilities, without prior setting of the endpoint’s

 

line rate during conference setup. In such a case,

 

the conference Line Rate is the maximum rate for

 

the participant connection.

 

 

10-12

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Polycom 8 manual Option, Description, 10-12, Transcoding and Continuous Presence - the line