About This Study Plan
This 90-day study plan breaks the MS-721 (Collaboration Communications Systems Engineer) exam preparation into 3 focused study sessions with a total of 12 actionable tasks. The plan covers all 4 exam domains — Plan and design collaboration communications systems, Configure and manage Teams meetings, webinars, and town halls, Configure and manage Teams Phone, Configure and manage Teams Rooms and devices — ensuring complete coverage of the exam blueprint. Comprehensive 90-day plan for Collaboration Communications Systems Engineer (MS-721).
Prerequisites
- Basic networking knowledge
- 30–60 minutes per day
Study Schedule
- Weeks 1–2: Teams architecture, admin center, and voice overview
- Week 3: Networking for voice — QoS, bandwidth, and assessment
- Week 4: Phone System concepts — Calling Plans, Direct Routing, Operator Connect
- End of month: Understand the voice architecture landscape
- Week 5: Direct Routing SBC setup and trunk configuration
- Week 6: Voice routing policies and dial plan normalization
- Week 7: Auto attendants, call queues, and emergency calling
- Week 8: Teams Rooms deployment and audio conferencing
- Week 9: Device management and call quality monitoring
- Week 10: Complex scenario practice and troubleshooting
- Week 11: Practice exam #1 + review
- Week 12: Practice exam #2, SBC drills, and final prep
Study Tips
MS-721 is very specialized — voice/telephony expertise is essential.
Set up a lab with a software SBC if possible.
Know the full voice routing chain: user → policy → PSTN usage → route → SBC.
Recommended Microsoft 365 Study Resources
Supplement this study plan with Microsoft Learn's free MS-721 learning path, which provides interactive modules and sandboxed Microsoft 365 environments. The Microsoft Virtual Training Days programme also offers free instructor-led sessions with a 50% exam discount voucher upon completion.
Ready to Practice?
Put your study plan into action with Collaboration Communications Systems Engineer practice questions.