Overview of the Collaboration Communications Systems Engineer Exam
The MS-721 certification validates the competency of telecommunications engineers and network administrators in deploying, managing, and optimizing Microsoft Teams Phone, meeting architectures, and enterprise voice solutions. Candidates must demonstrate deep technical proficiency in configuring Session Border Controllers, Direct Routing, Operator Connect, and Microsoft Calling Plans within a hybrid or cloud-only environment. Technical mastery extends to troubleshooting Quality of Service mechanisms, bandwidth management, PSTN connectivity, and emergency calling protocols. Furthermore, the exam evaluates the orchestration of Teams meeting policies, room system hardware integration, and advanced analytics for performance monitoring, ensuring seamless interoperability across complex, distributed global communications infrastructures.