Yealink SIP-T2 SERIES Administrator's Manual page 748

Administrator's Guide for SIP-T2 Series/T19(P) E2/T4 Series/CP860 IP Phones
5. Click OK to reboot the phone.
To configure DSCPs for voice packets and SIP packets via web user interface (take SIP
VP-T49G IP phones for example):
1. Click on Network->Advanced.
2. Enter the desired value in the Audio QoS (0~63) field.
3. Enter the desired value in the Video QoS (0~63) field.
4. Enter the desired value in the SIP QoS (0~63) field.
5. Click Confirm to accept the change.
A dialog box pops up to prompt that settings will take effect after a reboot.
6. Click OK to reboot the phone.
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