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Updated: Oct 04, 2026
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Nortel 920-521 Exam Overview:
| Certification Vendor: | Nortel |
|---|---|
| Exam Name: | Nortel Agile Communication Environment (ACE) Release Design & Engineering |
| Exam Number: | 920-521 |
| Certificate Validity Period: | Retired / no longer active |
| Exam Format: | Scenario-based questions, Multiple choice |
| Available Languages: | English |
| Exam Way: | Typically delivered via authorized testing centers (historical Nortel certification program) |
| Pre Condition: | Knowledge of enterprise telecommunication systems and IP networking recommended |
Nortel 920-521 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Quality of Service and Performance | - Performance optimization
|
| ACE Architecture Overview | - Protocol and signaling foundations
|
| Design and Engineering Principles | - Network integration design
|
| Call Processing and Services | - Feature services
|
| Operations, Troubleshooting and Maintenance | - System monitoring
|
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