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Nortel 920-534 Exam Syllabus Topics:

SectionObjectives
Carrier Network Infrastructure- Media gateways and PSTN interconnection
- IP/MPLS backbone integration
VoIP Fundamentals and Architecture- VoIP network components (gateways, softswitches, SIP/H.323)
- Carrier VoIP architecture and signaling flow
Fault Management and Troubleshooting- Call failure diagnosis and signaling analysis
- Voice quality monitoring and KPIs (MOS, R-factor)
IP Telephony Protocols- SIP session setup and teardown
- H.323 call control and interoperability
- RTP/RTCP media transport
QoS and Performance Engineering- Traffic engineering for VoIP carriers
- Codec selection and bandwidth optimization (e.g., G.711, G.729)
- Latency, jitter, packet loss impact on voice quality

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