# Meetings and Voice Glossary

> 34 terms from the Workplace & Collaboration book's Meetings and Voice part, each defined in a line and linked to the chapter that explains it.

- **Ask mode:** a workplace check-in setting in which a user's automatically detected work location isn't shared until the user opts in ([Rooms, Devices & the Hybrid Office](https://www.syntaqx.com/books/workplace-and-collaboration/rooms-and-the-hybrid-office#work-location-and-presence)).
- **Async video:** a recorded screen-and-camera message shared as a link and watched later, replacing a live meeting ([Async Video & Screen Recording](https://www.syntaqx.com/books/workplace-and-collaboration/async-video)).
- **Auto attendant:** a voice application that answers a business number and routes callers through a menu ([Business Phone & Contact Center](https://www.syntaqx.com/books/workplace-and-collaboration/business-phone-and-contact-center#what-a-business-phone-system-is)).
- **Auto-release:** freeing a booked room automatically when nobody checks in within a set window, or when all but one invitee declines ([Rooms, Devices & the Hybrid Office](https://www.syntaqx.com/books/workplace-and-collaboration/rooms-and-the-hybrid-office#booking-rooms-and-desks)).
- **Breakout room:** a sub-session split off from a meeting that participants move into and back from without rejoining ([Meetings & Video](https://www.syntaqx.com/books/workplace-and-collaboration/meetings-and-video#breakout-rooms)).
- **CCaaS (contact center as a service):** a cloud contact center with queues, routing, IVR, agent tooling and quality management ([Business Phone & Contact Center](https://www.syntaqx.com/books/workplace-and-collaboration/business-phone-and-contact-center#contact-centers)).
- **Cloud Video Interop (CVI):** Microsoft-qualified third-party gateways that let SIP and H.323 room systems join Teams meetings ([Meetings & Video](https://www.syntaqx.com/books/workplace-and-collaboration/meetings-and-video#interop-with-rooms-and-other-platforms)).
- **Compliance recording:** automatic, policy-driven recording of a user's calls and meetings, owned by the company, for regulatory capture ([Recordings, Transcripts & AI Notes](https://www.syntaqx.com/books/workplace-and-collaboration/recordings-transcripts-and-ai-notes#convenience-and-compliance-recording)).
- **Congestion control:** the sender-side algorithm that estimates available bandwidth from packet delay and loss and sets the media bitrate ([Meetings & Video](https://www.syntaqx.com/books/workplace-and-collaboration/meetings-and-video#simulcast-svc-and-bandwidth-adaptation)).
- **Convenience recording:** an ad hoc recording a user starts and manages, stored with the meeting's files ([Recordings, Transcripts & AI Notes](https://www.syntaqx.com/books/workplace-and-collaboration/recordings-transcripts-and-ai-notes#convenience-and-compliance-recording)).
- **Direct Guest Join:** a room system joining another vendor's meeting through that vendor's web client as a guest over WebRTC ([Rooms, Devices & the Hybrid Office](https://www.syntaqx.com/books/workplace-and-collaboration/rooms-and-the-hybrid-office#joining-across-vendors)).
- **Direct Routing:** connecting Teams Phone to any carrier through a certified session border controller the customer or a partner manages ([Business Phone & Contact Center](https://www.syntaqx.com/books/workplace-and-collaboration/business-phone-and-contact-center#connecting-to-the-phone-network)).
- **Dynamic emergency calling:** sending a 911 call with a location resolved from the client's current network connection rather than a fixed registered address ([Business Phone & Contact Center](https://www.syntaqx.com/books/workplace-and-collaboration/business-phone-and-contact-center#emergency-calling-on-the-customer-s-network-map)).
- **eCDN (enterprise content delivery network):** caches or peer-to-peer delivery inside a customer's network that keep a broadcast event from pulling one stream per viewer through the internet edge ([Meetings & Video](https://www.syntaqx.com/books/workplace-and-collaboration/meetings-and-video#large-meetings-webinars-and-town-halls)).
- **End-to-end encryption (E2EE):** encryption with keys held only on participants' devices, so the service forwards media it can't read and can't record, transcribe or summarize ([Meetings & Video](https://www.syntaqx.com/books/workplace-and-collaboration/meetings-and-video#encryption)).
- **Explicit recording consent:** a policy that requires each participant to agree before they're recorded or transcribed ([Recordings, Transcripts & AI Notes](https://www.syntaqx.com/books/workplace-and-collaboration/recordings-transcripts-and-ai-notes#consent-law)).
- **Firm order commitment (FOC):** the losing carrier's confirmation of the date it will release ported numbers ([Business Phone & Contact Center](https://www.syntaqx.com/books/workplace-and-collaboration/business-phone-and-contact-center#numbers-and-porting)).
- **Ghost meeting:** a recurring room booking nobody attends, holding the room until released ([Rooms, Devices & the Hybrid Office](https://www.syntaqx.com/books/workplace-and-collaboration/rooms-and-the-hybrid-office#booking-rooms-and-desks)).
- **Inform mode:** a workplace check-in setting in which automatic work location is shared unless the user opts out ([Rooms, Devices & the Hybrid Office](https://www.syntaqx.com/books/workplace-and-collaboration/rooms-and-the-hybrid-office#work-location-and-presence)).
- **Lobby (waiting room):** where people who don't bypass admission wait until an organizer admits them to a meeting ([Meetings & Video](https://www.syntaqx.com/books/workplace-and-collaboration/meetings-and-video#meeting-security)).
- **Location Information Service (LIS):** the customer-maintained map from access points, switch ports, switches and subnets to emergency addresses ([Business Phone & Contact Center](https://www.syntaqx.com/books/workplace-and-collaboration/business-phone-and-contact-center#emergency-calling-on-the-customer-s-network-map)).
- **Messaging Layer Security (MLS):** the IETF group key agreement protocol (RFC 9420) used for end-to-end encrypted meetings ([Meetings & Video](https://www.syntaqx.com/books/workplace-and-collaboration/meetings-and-video#encryption)).
- **Notetaker bot:** an app that joins meetings as a participant, often from a user's calendar, to record, transcribe and summarize them ([Recordings, Transcripts & AI Notes](https://www.syntaqx.com/books/workplace-and-collaboration/recordings-transcripts-and-ai-notes#notetaker-bots)).
- **Operator Connect:** connecting Teams Phone to a certified carrier that has already integrated with Microsoft, enabled from the admin center ([Business Phone & Contact Center](https://www.syntaqx.com/books/workplace-and-collaboration/business-phone-and-contact-center#connecting-to-the-phone-network)).
- **Resource account:** the mailbox-enabled identity a room or shared device signs in as, instead of a person ([Rooms, Devices & the Hybrid Office](https://www.syntaqx.com/books/workplace-and-collaboration/rooms-and-the-hybrid-office#rooms-as-accounts)).
- **Selective forwarding unit (SFU):** a media server that forwards each sender's streams to the receivers that need them without decoding them ([Meetings & Video](https://www.syntaqx.com/books/workplace-and-collaboration/meetings-and-video#topologies-why-everyone-runs-an-sfu)).
- **SFrame:** per-frame end-to-end media encryption (RFC 9605) that leaves routing data visible to an SFU ([Meetings & Video](https://www.syntaqx.com/books/workplace-and-collaboration/meetings-and-video#encryption)).
- **Simulcast:** a sender encoding the same source at several qualities so an SFU can forward each receiver the one it can take ([Meetings & Video](https://www.syntaqx.com/books/workplace-and-collaboration/meetings-and-video#simulcast-svc-and-bandwidth-adaptation)).
- **Speaker identification:** attributing speech to enrolled people using voice profiles, a form of biometric processing ([Recordings, Transcripts & AI Notes](https://www.syntaqx.com/books/workplace-and-collaboration/recordings-transcripts-and-ai-notes#transcripts-captions-and-speaker-identification)).
- **SVC (scalable video coding):** one video stream encoded in layers that an SFU can strip for weaker receivers ([Meetings & Video](https://www.syntaqx.com/books/workplace-and-collaboration/meetings-and-video#simulcast-svc-and-bandwidth-adaptation)).
- **Town hall:** a broadcast-style event in which attendees watch with a delay and interact through Q&A rather than microphones and cameras ([Meetings & Video](https://www.syntaqx.com/books/workplace-and-collaboration/meetings-and-video#large-meetings-webinars-and-town-halls)).
- **UCaaS (unified communications as a service):** the cloud business phone system sold with chat and meetings, priced per seat ([Business Phone & Contact Center](https://www.syntaqx.com/books/workplace-and-collaboration/business-phone-and-contact-center)).
- **Viewership retention:** views at each point of a video as a percentage of its most-watched point ([Async Video & Screen Recording](https://www.syntaqx.com/books/workplace-and-collaboration/async-video#viewer-analytics-and-privacy)).
- **Workplace check-in:** automatic setting of a user's actual work location from corporate Wi-Fi or a desk peripheral, off by default and without history ([Rooms, Devices & the Hybrid Office](https://www.syntaqx.com/books/workplace-and-collaboration/rooms-and-the-hybrid-office#work-location-and-presence)).

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