Transl.
Access
Layer
Network
Layer
Application
Layer
Mobile Station
Resource owner
Clearinghouse
Customer owner
QoS
QoS
Manager
APC
Router
Transl.
QoS
SGSN
APS
Policy servers
communication network
RSVP
APS
COPS
COPS
COPS
COPS
ISSL?
AAA
Layer
SIP
client
SIP
proxy
SIP
server
CH-APS
Border
Router
Border
Router
SIP
Radio
MA
QoS model for UMTS
e.g. towards home
AAA & Policy server (HLR)
RSVP
Router
(GGSN)
APC
Backbone provider
APS
(VLR)
IP traffic
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