- Exam Code: 920-450
- Exam Name: Communication server (CS) 1000 rls.4.0
- Updated: Aug 10, 2026
- Q & A: 61 Questions and Answers
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| Section | Objectives |
|---|---|
| Topic 1: CS 1000 Architecture and Components | - Call Server architecture (CS 1000 core design) - IP telephony infrastructure overview - Media Gateway and peripheral devices |
| Topic 2: Maintenance and Troubleshooting | - Fault isolation and repair procedures - System monitoring and diagnostics - Log analysis and performance tuning |
| Topic 3: Networking and Protocols | - Signaling and media transport - H.323 and SIP fundamentals in CS 1000 - IP addressing and network integration |
| Topic 4: Call Processing and Features | - Call control and feature implementation - Voice services and IP trunking - Dial plan configuration and routing |
| Topic 5: Installation and Configuration | - System installation and initial setup - Hardware provisioning and endpoint configuration - Software loads and release 4.0 upgrade procedures |
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