User's Manual

User Manual
Page 22 of 41
To edit an existing WAN interface:
1. Select the Virtual Circuit that you want to Edit from the drop down box
2. Make the necessary amendments
3. Click the Apply button to commit the settings
ADSL Settings
The DSL page allows you to select the modulation, the phone line pair and the capability.
Quality of Service
Quality of Service or QoS provides different priority to different applications, users, or
data flows, to guarantee a certain level of performance. For example, QoS is important
for real-time streaming multimedia applications such as voice over IP, online games and
IPTV to provide fixed bit rate and prevent delay.