- 🎯 Goal: Earn the Microsoft 365 Certified: Collaboration Communications Systems Engineer Associate badge
- 📅 Notes Version: 2026
- 🌐 Published site: 📘 MS-721 Study Notes
- ✍️ Author: Marco Grimaldi
- 🛬 Main Landing Page: 🛬 Landing Page: Study Notes
| Detail | Info |
|---|---|
| 🏅 Certification | Microsoft 365 Certified: Collaboration Communications Systems Engineer Associate |
| 📝 Passing Score | 700 / 1000 |
| 💶 Exam Price | ~€126 EUR (varies by EU country & Pearson VUE location; VAT may apply) |
| ⏱️ Duration | ~100 minutes |
| ❓ Question Types | MCQ, multi-select, drag-and-drop, case studies |
| 🔁 Renewal | Annual via free online assessment on Microsoft Learn |
| 🛡️ Prerequisite | None (recommended: familiarity with Teams admin, networking, telephony, and meeting room devices) |
⚠️ Official ranges from the Microsoft study guide (updated April 2026)
pie title Exam Domain Weights of the MS-721 (official ranges)
"Plan & Design Systems (20–25%)" : 22
"Meetings, Webinars & Town Halls (15–20%)" : 18
"Implement & Configure Teams Phone (30–35%)" : 32
"Teams Rooms & Devices (20–25%)" : 22
| # | Domain | Official Weight | Key Topics |
|---|---|---|---|
| 1 | Plan & Design Collaboration Communications Systems | 20–25% | Meetings design, Teams Phone & PSTN, certified devices, network readiness |
| 2 | Configure & Manage Teams Meetings, Webinars & Town Halls | 15–20% | Meeting policies, Audio Conferencing, webinars, town halls |
| 3 | Implement & Configure Teams Phone | 30–35% | Phone policies, auto attendants, call queues, emergency calling, Direct Routing |
| 4 | Configure & Manage Teams Rooms & Devices | 20–25% | Teams Rooms (Windows/Android), device management, BYOD spaces, bookable desks |
🔑 Domain 3 (Teams Phone) = heaviest domain — allocate ≥30% of total study time here.
flowchart LR
MS900["☁️ MS-900\nMicrosoft 365\nFundamentals\n(Recommended)"]
MS700["🏛️ MS-700\nManaging\nMicrosoft Teams"]
BADGE700["🏅 Teams\nAdministrator\nAssociate"]
MS721["📞 MS-721\nCollaboration\nCommunications\nSystems Engineer\n(This Exam)"]
BADGE721["🏅 Collaboration\nCommunications\nSystems Engineer\nAssociate"]
MS900 -->|Foundation| MS700
MS900 -->|Foundation| MS721
MS700 --> BADGE700
MS721 --> BADGE721
BADGE700 -.->|"Complementary\ncertification"| MS721
💡 MS-721 focuses on Teams Phone, meetings infrastructure, and certified devices (SBCs, Teams Rooms, call quality). MS-700 focuses on Teams administration (policies, governance, compliance). Together they cover the full Microsoft Teams certification spectrum.
ms-721-study-notes/
├── README.md ← 📍 You are here
├── 00-teams-voice-fundamentals.md ← Core Teams voice & communications concepts
├── 01-plan-design-systems.md ← Domain 1 (20–25%)
├── 02-meetings-webinars-townhalls.md ← Domain 2 (15–20%)
├── 03-teams-phone.md ← Domain 3 (30–35%)
├── 04-teams-rooms-devices.md ← Domain 4 (20–25%)
└── 05-quick-reference-cheatsheet.md ← Last-minute review & exam traps
| Resource | Link |
|---|---|
| 📚 Microsoft's MS-721 Certification Page | Certification Page |
| 📋 Skills Measured / Study Guide | Official Study Guide |
| 🧪 Free Practice Assessment | Practice Assessment |
| 📖 MS-721T00 Training Course | Instructor-Led Course |
| 📄 Microsoft Teams Admin Documentation | Teams Admin Docs |
| 🎬 Exam Readiness Videos | Exam Readiness Zone |
| 💶 EU Exam Pricing | Pearson VUE Microsoft |
- 🎯 The exam tests engineering-level design and configuration — think call flows, SBC architecture, and device provisioning
- 📞 Teams Phone is ~1/3 of the exam — Direct Routing, Operator Connect, dial plans, and voice routing are critical
- 🏢 Know Teams Rooms differences: Windows vs. Android, Basic vs. Pro licensing, resource accounts
- 🌐 Understand PSTN connectivity options — Calling Plans vs. Operator Connect vs. Direct Routing
- 📐 Study auto attendant and call queue design — call flows, business hours, holiday routing
- 🚨 Emergency calling (dynamic locations, LIS, routing policies) is heavily tested
- 📊 Know Call Quality Dashboard (CQD), Call Analytics, and network assessment tools
- 📖 For scenario questions: identify the correct connectivity method and licensing requirement first
| File | Topics Covered |
|---|---|
| 📘 00 — Teams Voice Fundamentals | Teams Phone architecture, PSTN connectivity, licensing, admin portals |
| 🔧 01 — Plan & Design Systems | Meeting design, Teams Phone planning, certified devices, network readiness |
| 🎥 02 — Meetings, Webinars & Town Halls | Meeting policies, Audio Conferencing, webinars, town halls |
| 📞 03 — Teams Phone | Phone policies, auto attendants, call queues, emergency calling, Direct Routing |
| 🏢 04 — Teams Rooms & Devices | Teams Rooms, Android devices, Windows rooms, BYOD, bookable desks |
| ⚡ 05 — Quick Reference Cheatsheet | Key numbers, decision tables, exam traps, final checklist |
These notes are hosted on GitHub Pages and published as a searchable website on this URL:
The site includes full-text search, Mermaid diagram rendering, and mobile-friendly navigation for on-the-go review.
These notes are designed to be a structured, exam-focused summary of the most important concepts and services based on the official Microsoft MS-721 Study Guide and its criteria.
Additional study notes maintained by me are also available for those pursuing Microsoft and Azure certifications at the following Landing Page:
Maintained by Marco Grimaldi — Cloud Consultant, Language Trainer & Lifelong Learner.
Find more certification guides, study tips, and tech content at 🏠 marcogrimaldi29.com
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