Description of the illustration ''%s''qos-overview

This figure shows the various aspects of a Service Gateway-to-PCRF implementation, including a subscriber phone, a GGSN/PCEF network element attached to the Internet and an Internet application. The GGSN/PCEF is also attached to Services Gatekeeper and a PCRF. The PCRF is attached to a billing system. The interrelationships are described in the surrounding text.