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Updated: Sep 18, 2026
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Microsoft 070-638 Exam Overview:
| Certification Vendor: | Microsoft |
|---|---|
| Exam Name: | TS: Microsoft Office Communications Server 2007, Configuring |
| Exam Number: | 70-638 |
| Certificate Validity Period: | Retired (no longer offered; certification legacy status) |
| Exam Price: | Varies by region (historically ~USD 125) |
| Real Exam Qty: | Approximately 40-60 |
| Available Languages: | English |
| Related Certifications: | Microsoft Office Communications Server 2007 Microsoft Certified Technology Specialist (MCTS) |
| Exam Format: | Multiple choice, Case studies, Scenario-based questions |
| Exam Duration: | 120 minutes |
| Passing Score: | 700 (on a 1000-point scale) |
| Recommended Training: | Microsoft Office Communications Server 2007 Documentation Microsoft Learn Training Platform |
| Exam Registration: | Microsoft Certification (Legacy / Archive) Pearson VUE Exam Registration |
| Sample Questions: | Microsoft 070-638 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 070-638 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Monitoring, Maintenance, and Troubleshooting | - Logging and monitoring tools - Performance and connectivity troubleshooting |
| Topic 2: Deploy and Configure Microsoft Office Communications Server 2007 | - Install and configure server components - Configure domain and forest requirements - Plan OCS 2007 topology and server roles |
| Topic 3: Manage Security and Compliance | - TLS/SIP security configuration - Authentication and certificates |
| Topic 4: Configure Enterprise Voice and Telephony Integration | - Voice routing and mediation server configuration - Dial plans and normalization rules |
| Topic 5: Configure Instant Messaging and Presence | - Presence policies and address book services - User provisioning and client access |
| Topic 6: Configure Federation and External Access | - Edge server configuration and security - Federation with external organizations - Public IM connectivity |
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