Appendix a – Aastra Telecom SISIP 57I CT User Manual
Page 367

Operational, Basic, and Advanced Parameters
41-001160-00, Rev 01 Release 2.0
A-25
Configuration Parameters
Appendix A
The following table identifies the default DSCP-to-priority mapping structure.
Parameter –
tos priority map
SIP Priority
RTP Priority
RTCP Priority
(for Port 0 in
Web UI)
IP phone UI
Options->Network Settings->VLAN->Phone->
Priority->SIP
Options->Network Settings->VLAN->Phone->
Priority->RTP
Options->Network Settings->VLAN->Phone->
Priority->RTCP
Aastra Web UI
Advanced Settings->Network->VLAN->Port 0
Configuration Files
aastra.cfg,
Description
This parameter is based on the Type of Service (ToS), Differentiated
Services Code Point (DSCP) setting for SIP (tos sip parameter), RTP (tos
rtp parameter) and RTCP (tos rtcp parameter). It is the mapping between
the DSCP value and the VLAN priority value for SIP, RTP, and RTCP
packets.
You enter the tos priority map value as follows:
(DSCP_1,Priority_1)(DSCP_2,Priority_2).....(DSCP_64,Priority_64)
where the DSCP value range is 0-63 and the priority range is 0-7.
Mappings not enclosed in parentheses and separated with a comma, or
with values outside the ranges, are ignored.
Format
Integer
Default Value
3 (based on the default ToS DSCP SIP setting of 24)
4 (based on the default ToS DSCP RTP setting of 32)
4 (based on the default ToS DSCP RTCP setting of 32)
Range
0 to 63 (for DSCP)
0 to 7 (for SIP, RTP, and RTCP priorities)
Example
tos priority map: (24,7)
DSCP
Range
DSCP Priority
0-7
0
8-15
1
16-23
2
24-31
3
32-39
4
40-47
5
48-55
6
56-63
7