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Nortel 920-808 Exam Syllabus Topics:

Section	Objectives
Quality of Service (QoS)	- Traffic prioritization and classification - QoS models (Best Effort, IntServ, DiffServ) - Congestion management and queueing mechanisms
Network Performance and Reliability	- Fault tolerance and redundancy mechanisms - Delay reduction techniques and jitter buffering
Session Control and Signaling	- Call control and signaling flows - Session initiation and management concepts (SIP/H.323 basics)
Routing and Transport Optimization	- MPLS and traffic engineering concepts - IP routing fundamentals for real-time services
Real-Time Networking Fundamentals	- Real-time vs non-real-time data transmission requirements - Characteristics of real-time traffic (latency, jitter, packet loss)
Voice and Multimedia over IP	- Codec selection and bandwidth considerations - VoIP architecture and RTP/RTCP protocols