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24 SmartVoice Gateway(s) User Guide
YML832 Rev2
QoS Settings
WAN QoS
• QoS (Quality of Service): Sets true bandwidth of your Internet connection to ensure sound quality
during transmission. (When this function is enabled, the voice packet has the highest priority to
ensure telecommunication quality while less bandwidth is assigned for data transmission). Some
models of the VoIP gateway without this function can adjust the bandwidth automatically.
NOTE: The WAN QoS function only works as expected when you connect/configure
the gateway as described on Page 13. If the gateway is behind an Internet sharing
device as described in Page 14, QoS for VoIP traffic should be guaranteed by your
network routers and not the VoIP gateway.
• ToS/DiffServ (Type of Service/DSCP): The voice packet has the highest priority to
ensure telecommunication quality; the larger the value you set, the higher priority
you will get.
NOTE: Please contact your ISP when you configure these values.