Chapter 10 - Conference Templates – Full Parameters View
Table
Option | Description |
|
|
Video Protocol | The Video Protocol, Video Format and QCIF Frame |
| Rate are parameters that determine the highest |
| common video used by all the conference |
| participants. The Video Protocol determines the |
| video compression standard used by the endpoints. |
| Select one of the following options: |
| Auto - the system automatically selects the |
| appropriate compression method and enables the |
| dynamic adjustment of the highest common video |
| algorithm. In such a case, when a participant leaves |
| the conference, the MCU adjusts the common video |
| to the highest level for the remaining connected |
| participants. This setting overrides the Video |
| Protocol settings in the Participants Properties - |
| Advanced dialog box as the dynamic mode settings |
| are forced by the MCU. |
| H261 - The compression standard mandatory to all |
| endpoints. |
| H263 - The compression standard that provides |
| improved video quality at a line rate lower than 384 |
| Kbps. This standard is not supported by all |
| endpoints. If H.263 is selected in Video Switching |
| conferences, all participants must be connected |
| using this protocol. Participants whose endpoint |
| does not support H.263 are connected as |
| Secondary. |
| Note: |
| When selecting the H.261 or H.263, the system |
| regards it as a fixed format and disables the dynamic |
| adjustment of the highest common video. |
| The dynamic adjustment of the video protocol |
| supports only 30 frames per second in CIF format. |
| All other H.263 capabilities are disabled. |
| H264* - The compression standard H.264* that |
| incorporates DCT (H.263) compression principles, |
| but is provided at half the bit rate. |
| H.264* provides CIF/4CIF video using low bit rates |
| and implements a fixed video rate when the video |
| stream of the endpoint becomes active ("people"). |
| The Endpoint that supports H.264* is iPower. |
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