MS-721 cheat sheet

Teams QoS marks audio with DSCP 46 (EF), video with 34 (AF41), screen sharing with 18 (AF21), and other traffic with 0.

Real-time Teams media should bypass VPN; use split tunneling and local internet egress to avoid hairpin latency.

Guest access requires a guest account and is governed by external collaboration settings; external access (federation) lets native users in other tenants chat and call.

Meeting policies are assigned to users or groups and control lobby behavior, anonymous join, recording, transcription, chat, and screen sharing.

Phone System PSTN options are Microsoft Calling Plan, Direct Routing with a certified SBC, and Operator Connect with a qualified carrier.

A Teams expiration policy can remove inactive teams after a set period; owners are notified and can renew before deletion.

The Microsoft Teams Network Assessment Tool tests connectivity and call quality to Teams endpoints, including required UDP ports and media metrics.

Separate SKUs commonly involved in design include Teams Rooms Pro or Standard, Phone System, Audio Conferencing, and Calling Plan.

Governance design includes team naming policy, guest permissions, sensitivity labels, and lifecycle expiration.

Meeting policies control organizer and attendee features such as lobby admission, anonymous join, chat, screen sharing, recording, and transcription.

Meeting templates store predefined meeting options in Teams admin center and can be applied to enforce consistent meeting settings.

Webinars add registration, confirmation communications, attendee reporting, and moderated Q&A for interactive events.

Town halls are one-to-many events; presenters share content while attendee cameras and microphones are not enabled by default.

Teams cloud recordings are stored in OneDrive for regular meetings and SharePoint for channel meetings, with access governed by sharing permissions.

Live captions and transcripts convert speech to text; transcription policy settings determine whether transcripts can be started or viewed.

Lobby bypass options include people in the organization, invited users, and everyone, depending on meeting policy and meeting options.

Breakout rooms split a meeting into sub-meetings; organizers can assign participants manually or automatically and manage room timing.

Dial-in conferencing requires an Audio Conferencing license and configured conference bridge settings.

Auto attendants answer calls and route them through menus such as dial-by-name or directory search using a licensed resource account.

Call queues distribute calls to agents using round robin, serial, longest idle, or attraction routing.

Direct Routing requires a certified Session Border Controller, a SIP trunk, and voice routing configuration to connect external PSTN.

A Calling Plan provides Microsoft-hosted PSTN numbers and calling minutes assigned to users or service accounts.

Dial plans use normalization rules to convert dialed numbers to E.164 before routing.

Voice routing policies assign PSTN usage records to users; each PSTN usage links to voice routes that determine PSTN path selection.

Emergency calling uses validated emergency addresses; dynamic emergency calling derives location from network data.

An SBC handles SIP signaling, media, security, and carrier interoperability for Direct Routing; media bypass can keep media local.

A Survivable Branch Appliance provides local PSTN failover when a branch loses connectivity to Teams Phone.

A Teams Rooms resource account requires a room mailbox and a Teams Rooms license to sign in the room device.

Teams Rooms Pro includes the Teams Rooms Pro Management portal and advanced management features; Standard relies on Teams admin center management.

Teams admin center Devices lists Teams Rooms, phones, panels, and collaboration bars and shows health, software version, and update actions.

Configuration profiles apply settings to Teams Android devices and are assigned to device resource accounts.

Teams panels are mounted outside meeting rooms for scheduling, check-in, and room availability and require a resource account.

Update rings stage software and firmware rollout across Teams devices to reduce fleet-wide disruption.

Conditional access policies can require compliant or trusted devices and specific sign-in conditions for Teams devices.

Teams Rooms on Windows runs Windows IoT Enterprise; Teams Rooms on Android runs the Android Teams Rooms app.

Hot desking allows users to sign in to shared Teams phones or displays with their own account for personal calendar and calls.