Chapter 11 – IP Service Settings
Parameter
Description
| DiffServ and Precedence are two methods for encoding | |
| packet priority. The priority set here for audio and video | |
| packets should match the priority set in the network | |
| routers. | |
| Differv: Select when the network router uses Differv for | |
| priority encoding. If this option is selected, enter values | |
| in the Audio and Video fields. The value range is 0~63. | |
| Note: If you select DiffServ but your router does not | |
| support this standard, IP packets queue on the same | |
| communication links with data packets. This | |
Type | ||
jitters in their delivery and can negatively impact | ||
| ||
| performance. | |
| Precedence: Select this option when the network router | |
| uses Precedence for priority encoding, or when you are | |
| not sure which method is used by the router. | |
| Precedence should be matched with None in the Tos | |
| field. If this option is selected, enter values in the Audio | |
| and Video fields, in the value range of 0~5. | |
| Note: Precedence is the default mode as it is capable of | |
| providing priority services to all types of routers and is | |
| currently the most common mechanism. | |
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| |
| You can prioritize audio and video IP packets to ensure | |
| that all participants in the conference hear and see each | |
Audio / Video | other clearly. | |
The recommended priority is 4 for audio and video to | ||
| ensure that the packet delay for both is the same, that | |
| audio and video packets are synchronized, and to ensure | |
| lip and audio synchronization (lip sync). | |
|
| |
| Select the Type of Service (ToS) that defines optimization | |
| tagging for routing the conference audio and video | |
| packets. | |
| Delay: The recommended default for video | |
Tos | conferencing; prioritized audio and video packets tagged | |
with this definition are delivered with minimal delay | ||
| ||
| None: No optimization definition is applied. This is a | |
| compatibility mode in which routing is based on | |
| Precedence priority settings only. Select None if you do | |
| not know which standard your router supports. | |
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Ports
Users can set