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Nortel Other Certification 920-521

920-521

Exam Code: 920-521

Exam Name: Nortel Agile Comm Environment (ACE) Rls. Design&Engineering

Updated: Jul 22, 2026

Q&A Number: 100 Q&As

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Nortel 920-521 Exam Syllabus Topics:

SectionObjectives
ACE Architecture Overview- System architecture and components
  • 1. Core network elements and roles
    • 2. Service delivery architecture
      - Protocol and signaling foundations
      • 1. Interworking with legacy telephony systems
        • 2. VoIP and signaling principles
          Quality of Service and Performance- QoS design
          • 1. Traffic prioritization mechanisms
            • 2. Bandwidth management strategies
              - Performance optimization
              • 1. Latency and jitter control
                • 2. Network tuning techniques
                  Design and Engineering Principles- Solution design considerations
                  • 1. High availability and redundancy design
                    • 2. Capacity planning and scalability
                      - Network integration design
                      • 1. Enterprise network integration
                        • 2. Service provider interoperability
                          Call Processing and Services- Call routing and control
                          • 1. Dial plan design and implementation
                            • 2. Routing policies and call flows
                              - Feature services
                              • 1. Advanced telephony features
                                • 2. Unified communications services
                                  Operations, Troubleshooting and Maintenance- Troubleshooting methodologies
                                  • 1. Call failure analysis
                                    • 2. Network issue diagnosis
                                      - System monitoring
                                      • 1. Fault detection and alerting
                                        • 2. Performance monitoring tools

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