Spectralink 84-Series Series Wireless Telephones Administration Guide
1725-86984-000_P.docx
September 2016
215
IP Type-of-Service
The
type-of-service
field in an IP packet header consists of four type-of-service (TOS) bits and a
3-bit precedence field. See the next table for available parameters. Each TOS bit can be set to
either 0 or 1. The precedence field can be set to a value from 0 through 7. The type of service
can be configured specifically for RTP packets and call control packets, such as SIP signaling
packets.
Table 10-6: IP Type-of-Service (ToS)
Parameter
Permitted Values
Default
qos.ip.callControl.max_reliability
1
qos.ip.callControl.max_throughput
1
qos.ip.callControl.min_cost
1
qos.ip.callControl.min_delay
1
qos.ip.callControl.precedence
1
0 or 1
0 or 1
0 or 1
0 or 1
0 -7
0
0
0
1
5
Set the bits in the IP ToS field of the IP header used for call control. Specify whether or not to set the max reliability
bit, the max throughput bit, the min cost bit, the min delay bit, and the precedence bits.
If 0, the bit in the IP ToS field of the IP header is not set. If 1, the bit is set.
qos.ip.rtp.dscp
1
Null, 0 to 63
Null
Specify the DSCP of packets. If the value is not null, this parameter will overrule the other
qos.ip.rtp.*
parameters. The default value is Null, so the other
qos.ip.rtp.*
parameters will be used.
qos.ip.rtp.max_reliability
1
qos.ip.rtp.max_throughput
1
qos.ip.rtp.min_cost
1
qos.ip.rtp.min_delay
1
qos.ip.rtp.precedence
1
0 or 1
0 or 1
0 or 1
0 or 1
0 -7
0
1
0
1
5
Set the bits in the IP ToS field of the IP header used for RTP. Specify whether or not to set the max reliability bit, the
max throughput bit, the min cost bit, the min delay bit, and the precedence bit.
If 0, the bit in the IP ToS field of the IP header is not set. If 1, the bit is set.
1
Change causes handset to restart or reboot.
<qos/>
These parameters control the Quality of Service (QoS) options:
The 802.1p/Q user_priority field RTP, call control, and other packets
The “type of service” field RTP and call control packets
Troubleshooting: Trouble with WMM-AC?
Phones deployed prior to software release 4.3 use different defaults for the three
Ethernet parameters listed below. If you have trouble with connectivity when WMM-
AC is deployed, configure these three parameters with the defaults as shown. You
can find them in the everything.cfg file.