Yealink SIP-T54S Administrator's Manual page 146

Administrator's Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
static.network.qos.audiotos
Description:
Configures the DSCP (Differentiated Services Code Point) for voice packets.
The default DSCP value for RTP packets is 46 (Expedited Forwarding).
Note: If you change this parameter, the IP phone will reboot to make the change take
effect.
Web User Interface:
Network->Advanced->Voice QoS (0~63)
Phone User Interface:
None
static.network.qos.signaltos
Description:
Configures the DSCP (Differentiated Services Code Point) for SIP packets.
The default DSCP value for SIP packets is 26 (Assured Forwarding).
Note: If you change this parameter, the IP phone will reboot to make the change take
effect.
Web User Interface:
Network->Advanced->SIP QoS (0~63)
Phone User Interface:
None
To configure DSCPs for voice packets and SIP packets via web user interface:
Click on Network->Advanced.
1.
Enter the desired value in the Voice QoS (0~63) field.
2.
120
Parameters Permitted Values
Integer from 0 to 63
Integer from 0 to 63
Default
46
26