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Cisco 642-426 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Common Deployment Problems | - Call routing and dial plan issues - Quality of Service and media problems |
| Unified Communications Components | - Cisco Unified CallManager troubleshooting - IP network infrastructure problems - Cisco Unity voice-mail troubleshooting |
| Troubleshooting Methodology | - Use of diagnostic tools and resources - Problem identification and isolation |



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