| Description | Call Admission Control(CAC) on the Gateway ensures that
required network resources are available for real-time
data traffic, such as voice, video, etc., and to support
establishment and modification of the QoS parameters by
signaling and negotiating during PDP or Bearer context
activation procedure and modification procedure. CAC
performs this by examining various QoS parameters like
traffic class, maximum bit rate and guaranteed bit rate
for both uplink and downlink received from the MME or
SGSN with the local configured parameters or policy
received from Policy Decision Function(PDF).
This table represents various parameters required to
support CAC. |