Quality Of Service (Qos); Voice And Sip Qos Configuration - Yealink W60P Administrator's Manual

Administrator's Guide for W60P/W53P/W41P DECT Phones
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If you change this parameter, the IP phone will reboot to make the change take effect.

Quality of Service (QoS)

VoIP is extremely bandwidth and delay-sensitive. QoS is a major issue in VoIP implementations, regarding how to guar-
antee that packet traffic is not delayed or dropped due to interference from other lower priority traffic. VoIP can guar-
antee high-quality QoS only if the voice and the SIP packets are given priority over other kinds of network traffic. IP
phones support the DiffServ model of QoS.
Voice QoS
In order to make VoIP transmissions intelligible to receivers, voice packets should not be dropped, excessively delayed,
or made to suffer varying delay. DiffServ model can guarantee high-quality voice transmission when the voice packets
are configured to a higher DSCP value.
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.
Note
For voice and SIP packets, the IP phone obtains DSCP info from the network policy if LLDP feature is enabled, which takes
precedence over manual settings. For more information on LLDP, refer to
Topic

Voice and SIP QoS Configuration

Voice and SIP QoS Configuration
The following table lists the parameters you can use to configure voice QoS and SIP QoS.
static.network.qos.audiotos
Parameter
It configures the DSCP (Differentiated Services Code Point) for voice packets.
Description
The default DSCP value for RTP packets is 46 (Expedited Forwarding).
Permitted Values Integer from 0 to 63
Default 46
Web UI Network->Advanced->Voice QoS->Voice QoS (0~63)
static.network.qos.signaltos
Parameter
It configures the DSCP (Differentiated Services Code Point) for SIP packets
Description
The default DSCP value for SIP packets is 26 (Assured Forwarding).
Permitted Values Integer from 0 to 63
Default 26
Web UI Network->Advanced->Voice QoS->SIP QoS (0~63)
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If you change this parameter, the IP phone will reboot to make the change take effect.
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LLDP Configuration
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<y0000000000xx>.cfg
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<y0000000000xx>.cfg
.