This is meant for those hardware and software engineers interested to work on 3G handsets or 3G-network design. It covers both the h/w and s/w aspects. It discusses present and future network components, their strengths and weaknesses. It helps you learn to integrate handheld devices and cellphones with wireless networking h/w ans s/w. QoS and SLAs (Service Level Agreements) are explained with a wireless perspective. The technologies behind quality-based billing methodology is also described. The book details 3G h/w, 3G Handset s/w, 3G Network h/w, and 3G Network s/w. Concepts are illustrated with diagrams and visuals. Overall an interesting book to understand third generation (3G) wireless technology.