Mitel 6867i Administrator's Manual page 198

Mitel 6800 Series SIP Phone Release 4.2.0 Administrator Guide
When the VLAN global configuration parameter, "tagging enabled" is set to 1, VLAN priority
for IP packets is mapped to the DSCP value instead of a single priority for all packets. An
administrator can also configure VLAN priority for non-IP packets using the "priority non-ip"
parameter.
Since the default DSCP settings for SIP, RTP, and RTCP are 26, 46, and 46 respectively, this
results in corresponding default VLAN priorities of 3 for SIP, 5 for RTP, and 5 for RTCP (based
on the settings in the table
You can change the default parameters by modifying just the DSCP values, just the VLAN
priority values, or by modifying all values.
The following table shows the DSCP range/VLAN priority mapping:
DSCP RANGE
0-7
8-15
16-23
24-31
32-39
40-47
48-55
56-63
The following table identifies the default DSCP values for the protocols:
PROTOCOL NAME
sip
rtp
rtcp
Configuring Type of Service (ToS)/DSCP (optional)
Use the following procedures to configure ToS/DSCP on the IP phone.
Note: ToS/DSCP is enabled by default. The SIP, RTP, and RTCP parameters show
defaults of 26, 46, and 46, respectively. Use the following procedures to change these
settings if required.
CONFIGURATION FILES
For specific parameters you can set in the configuration files, see Appendix A, the section,
"Type of Service (ToS)/DSCP Settings"
IP PHONE UI
4-45
"DSCP Range/VLAN Priority Mapping"
VLAN PRIORITY
0
1
2
3
4
5
6
7
DEFAULT DSCP VALUES IN THE TOS FIELD
26
46
46
on page A-42.
on page 4-44).