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Updated: Sep 01, 2026
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Microsoft 70-638 Exam Overview:
| Certification Vendor: | Microsoft |
|---|---|
| Exam Name: | TS: Microsoft Office Communications Server 2007, Configuring |
| Exam Number: | 70-638 |
| Exam Price: | Varies by region (historically ~USD 125) |
| Passing Score: | 700 (on a 1000-point scale) |
| Exam Format: | Multiple choice, Scenario-based questions, Case studies |
| Real Exam Qty: | Approximately 40-60 |
| Available Languages: | English |
| Certificate Validity Period: | Retired (no longer offered; certification legacy status) |
| Related Certifications: | Microsoft Certified Technology Specialist (MCTS) Microsoft Office Communications Server 2007 |
| Exam Duration: | 120 minutes |
| Recommended Training: | Microsoft Office Communications Server 2007 Documentation Microsoft Learn Training Platform |
| Exam Registration: | Pearson VUE Exam Registration Microsoft Certification (Legacy / Archive) |
| Sample Questions: | Microsoft 70-638 Sample Questions |
| Exam Way: | Delivered via Pearson VUE testing centers or online proctored exam (historically). |
| Pre Condition: | No formal prerequisite, but experience with Windows Server and Active Directory is recommended. |
| Official Syllabus URL: | https://learn.microsoft.com/en-us/ |
Microsoft 70-638 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Deploy and Configure Microsoft Office Communications Server 2007 | - Configure domain and forest requirements - Plan OCS 2007 topology and server roles - Install and configure server components |
| Monitoring, Maintenance, and Troubleshooting | - Performance and connectivity troubleshooting - Logging and monitoring tools |
| Manage Security and Compliance | - TLS/SIP security configuration - Authentication and certificates |
| Configure Enterprise Voice and Telephony Integration | - Voice routing and mediation server configuration - Dial plans and normalization rules |
| Configure Instant Messaging and Presence | - Presence policies and address book services - User provisioning and client access |
| Configure Federation and External Access | - Federation with external organizations - Edge server configuration and security - Public IM connectivity |
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