Chapter 4 – Administrator Configuration
Parameter
Description
System Prefix/E164 | Sets the E.164 number for the system. |
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System H.323 Alias | Sets the H.323 alias for the system. |
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3Click Update and a dialog box will pop up, in which you should confirm to restart the system to apply the setting.
QoS
Quality of Service (QoS) is very important in transmission of
•Average packet delay
•Delay variation (jitter)
•Error rate
To specify QoS parameters:
1Click System Config>Signaling Setting>QoS in the menu bar at the top of the page.
2On the QoS page, configure the following parameters:
Table
Parameter
Description
Enable QoS | Select this option to enable configuration of the QoS | |
settings. When | ||
| QoS settings. | |
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| 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 | ||
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| 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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