15 VoIP tests
ARGUS 152
151
VoIP QoS (Quality of Service)
Layer 3
DiffServ
Differentiated services: Classification/prioritisation of IP packets (L3)
RTP
(ToS/DSCP)
ToS
Type of service
Field for setting the priority in the IP header of the usa-
ble data (RTP), see page 115 for further details.
Range: 0 to 0xFF
Default:
18
DSCP
Differentiated services codepoint
Field for setting the priority in the DS field (6 bits) of the
usable data (RTP), see page 115 for further details.
Range: 0 to 0x3F
Default:
00
SIP
(ToS/DSCP)
ToS
Type of service
Field for setting the priority in the IP header of SIP data
(signalling), see page 115 for further details.
Range: 0 to 0xFF
Default:
18
DCSP
Differentiated services codepoint
Field for setting the priority in the DS field (6 bits) of the
SIP data (signalling), see page 115 for further details.
Range: 0 to 0x3F
Default:
00
Layer 2
VLAN Prio
The VLAN prioritisation on layer 2 is an extension of the Ethernet header.
RTP VLAN
Prio
VLAN prioritisation of usable data (RTP)
Range: 0 to 7
Default:
0
SIP VLAN
Prio
VLAN prioritisation of SIP data (signalling)
Range: 0 to 7
Default:
0