EXFO EXpert VoIP Test Tools User Manual
Page 35
Test Setup
EXpert IP
29
Configuration (SIP)
For Controller Call Mode:
Disabled (default) doesn‘t use the PRACK method.
Supported does not insist on usage of reliable provisional
responses. However, the UAC supports the reliable provisional
responses in case where the UAS needs to send one. The UAC
creates a request by inserting a Supported header field into the
request.
Required insists on reliable delivery of provisional responses. The
UAC creates a request by inserting a Require header field into the
request.
For Responder Call Mode:
PRACK check box when selected (default) allows to respond to
Provisional Response ACKnowledgement by providing reliable
provisional response messages.
SIP DSCP
1
(SIP Differentiated Services Code Point) describe a set of
QoS (Quality of service) capabilities. The accepted range is from
0 (default) to 63.
IP Media DSCP
1
(IP Media Differentiated Services Code Point)
describes a set of end-to-end QoS (Quality of Service) capabilities.
End-to-end QoS is the ability of the network to deliver service required
by the specific network traffic from one end of the network to the other
end. The accepted range is from 0 (default) to 63.
1. Not supported on FTB-2 and FTB-2 Pro.