Yealink SIP-T4X Administrator's Manual page 198

Administrator's Guide for SIP-T4X IP Phones
SIP QoS
SIP protocol is used for creating, modifying and terminating two-party or multi-party
sessions. To ensure good voice quality, SIP packets emanated from IP phones should be
configured with a high transmission priority.
DSCPs for voice and SIP packets can be specified respectively.
The DSCP value of voice traffic in the received LLDP packet will override the manual
Note
configuration.
Procedure
DSCPs for voice packets and SIP packets can be configured using the configuration files
or locally.
Configuration File
Local
To configure DSCPs for voice packets and SIP packets via web user interface:
1. Click on Network->Advanced.
2. Enter the desired value in the Voice QoS (0~63) field.
182
<y0000000000xx>.cfg
Web User Interface
Configure the DSCPs for voice
packets and SIP packets.
For more information, refer to
QoS on page 354.
Configure the DSCPs for voice
packets and SIP packets.
Navigate to:
http://<phoneIPAddress>/servl
et?p=network-adv&q=load