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Last Updated: Sep 17, 2026
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Nortel 920-553 Exam Overview:
| Certification Vendor: | Nortel |
|---|---|
| Exam Name: | Multiservice Switch 15K/20K-OAM in a Carrier VoIP Network |
| Exam Number: | 920-553 |
| Passing Score: | 70% |
| Certificate Validity Period: | 2–3 years |
| Exam Price: | USD 125–200 |
| Real Exam Qty: | 50–62 |
| Exam Duration: | 90–120 |
| Exam Format: | Multiple Choice |
| Available Languages: | English |
| Exam Registration: | Pearson VUE (historical provider) |
| Sample Questions: | DOWNLOAD DEMO |
| Exam Way: | Computer-based testing (onsite at authorized test centers) |
| Pre Condition: | No formal prerequisites; recommended experience with Nortel Multiservice Switch and VoIP technologies |
Nortel 920-553 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Maintenance & Operational Procedures | 10% | - Software upgrades and backups - Best practices for OAM operations - Service continuity and redundancy |
| Topic 2: Configuration of OAM Functions | 25% | - Fault management configuration - OAM provisioning and setup - Connectivity verification protocols |
| Topic 3: Performance Monitoring & Statistics | 20% | - Report generation and analysis - Performance metrics collection - QoS and traffic monitoring |
| Topic 4: Fault Management & Troubleshooting | 25% | - Alarm and event handling - Troubleshooting VoIP and service issues - Diagnostic tools and commands |
| Topic 5: OAM Fundamentals in Carrier VoIP Networks | 20% | - Carrier VoIP network architecture overview - Multiservice Switch 15K/20K platform basics - OAM concepts and standards |
Nortel Multiservice Switch 15K/20K-OAM in a Carrier VoIP Network Essentials: What Candidates Ask
- Fault Management & Troubleshooting (25%)
- Maintenance & Operational Procedures (10%)
- Performance Monitoring & Statistics (20%)
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