A: Here is a brief comparison of chat-based collaboration tools:

Setup	Microsoft Teams	Skype for Business
Available to	NUS Staff, Students and Visitors with Office 365	NUS Staff and Students (Search for NUS Students via SFB client)
NUS Directory Integration
External Guest Access		(Refer to SFB Collaborations)
Server	Microsoft (Azure Cloud)	Microsoft (Azure Cloud)
Integration	With Office 365 apps	-
Team Size	Maximum 10,000	-
Desktop & Mobile Apps
Collaboration Features	Microsoft Teams	Skype for Business
Team Conversations	Asynchronous (Persistent and threaded)	Synchronous
Private Chat (1:1)
Private Group Chat (1:many)	(maximum 250)	(maximum 250)
Online Presence
Rich Text and Emojis	(and stickers/GIFs)	Emojis only
Like and @mentions
File Sharing	(integration with Office 365 apps)	(Windows only)
File and Folder Management
Search and Filter	(across teams, files and conversations)	No (only individual chats if history enabled)
Call/Meeting Features	Microsoft Teams	Skype for Business
Telephone Calls
VoIP Calls (Audio/Video)	(maximum 300)
Schedule Online Meeting		(Outlook Calendar or in app)
Join Meeting	On web, desktop or mobile (iOS/Android) app for members already in team	With meeting link
Screen Sharing	Desktop Specific Window PowerPoint File	Desktop PowerPoint File (except MacOS)
Whiteboard
Record Meeting	(saved to Microsoft Stream)	(disabled)
Meeting Chat

Note:

To start a Zoom meeting, Sign in first via the web portal: https://nus-sg.zoom.us to activate your NUS Zoom account. For more info on Zoom refer to: Zoom

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