Polycom 8 manual 11-14, Video Protocol

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11-14

Chapter 11 - Managing Participant Templates

Table 11-3: Advanced Connection Parameters for Video ISDN/ATM/MPI

Option

Description

 

 

Video Protocol

Select the Video compression standard:

 

Auto - Select this option to use the conference’s

 

Video Protocol settings and enable the dynamic

 

adjustment of the Video Protocol in Video Switching

 

conferences.

 

H261 – The video compression standard mandatory

 

to all codecs.

 

H263 - A compression standard that provides

 

improved video quality at a line rate lower than 384

 

Kbps. This standard is not supported by all codecs.

 

H264 - By default, the Video Protocol is set to Auto.

 

When H.264 is selected as the Video Protocol, the

 

participants are “forced” to use the H.264 video

 

protocol. Endpoints that do not have H.264 video

 

protocol capabilities connect as Secondary.

 

Note:

 

When the Video Protocol field in the Conference

 

Properties – Settings is set to Auto it overrides

 

the Video Protocol settings in the Participant

 

Properties – Advanced window as the dynamic

 

mode is enabled and the video settings are forced

 

by the MCU.

 

If the Video Protocol is set to H.263 and the

 

endpoint does not support it, the participant will

 

be connected as Secondary (Audio only).

 

 

Auto Detect

Select this option to enable the MCU to automatically

 

detect the line rate of incoming ISDN calls and

 

connect the participant accordingly, without prior

 

definition of the participant properties, such as Line

 

Rate. The participant can be connected at the

 

maximum line rate set for the conference. This option

 

is disabled for users using the MPI and ATM Interface

 

Types. When this option is selected, the following

 

parameters are automatically detected by the MCU

 

and therefore are disabled: Aggregation, Number of

 

Channels, Video Protocol, Audio Only, and Restrict.

 

 

11-14

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Polycom 8 manual 11-14, Video Protocol