ZOOM Instructor Guide


  • The University has selected Zoom as the primary platform to support synchronous teaching and learning activities. Zoom is trusted by universities and well received by users around the world (including mainland China). Despite its rich features, most users find it very easy to use.
  • Zoom One for Education Enterprise Essentials plan is assigned to CUHK staff users when they sign in to Zoom with SSO (company domain: cuhk.zoom.us) using CUHK Login: Meeting (capacity: 500), Webinar (attendee capacity: 500), unlimited Whiteboard, and Translated Captions.
  • Special arrangement has to be made by ITSC to allocate a large meeting license, which allows up to 1000 participants. Apart from “Meeting”, ZOOM can conduct “Webinar” which allows up to 10,000 participants.  “Meeting” and “Webinar” have different functionality. For more about special license, please refer to this page.  
  • Licenses that have not been used for three months will be removed. To regain the license, please sign in at https://cuhk.zoom.us.

System Requirements

System Requirements (e.g. bandwidth) and Equipment Suggestions:


Time limits for idle meetings

  • Please refer to Zoom Support: Understanding time limits for Zoom Meetings
    • 1 host and 1 or more participants joined (including those who joined the waiting room and were not admitted). Only one person remains in the meeting. The meeting will end 40 minutes later if no one else joins.
    • Please consider locking the meeting once it is started if you would only like to have one host in the meeting (e.g., for recording purpose and do not expect any participants to join).

Special Notes for China Access

Quickstart Instructions

  • Account activation

    1. Launch a web browser, go to https://cuhk.zoom.us (https://cuhk.zoom.com.cn/signin for users in mainland China).
    2. Click “Sign in” and login via CUHK Login with CUHK email alias and OnePass password. 2FA (DUO Two Factor Authentication) is required. 
  • Schedule a meeting

  • Sign in Zoom client to start a meeting

    1. Download and Install Zoom client from Zoom: Download Center. You are advised to use Zoom desktop client
    2. Before you start the meeting, please check if the client is updated. For more: Zoom Help Center: Downloading the latest Zoom update
    3. To sign in Zoom client:
      1. Click “Sign In”.
      2. Select “SSO” for 'sign in with'.
      3. Enter ‘cuhk’ as the company domain, and click “Continue”.  Login via CUHK Login with CUHK email alias and OnePass password.
      4. Click “Launch Zoom” or open Zoom.

You could also refer to the videos below:

  • Start a meeting

    1. After signing in, select the meeting under “Meetings” > “Upcoming” and click “Start”.
    2. Test your speaker and microphone or Join with Computer Audio. 
    3. Please check “Security” for the in-meeting security options as well: Zoom Help Center: In-meeting security options.

To learn about the features of Zoom Meetings, please refer to CUHK Help Center: ZOOM: Features

ZOOM Help Center and Zoom Blog

ZOOM Training

ZOOM Features Highlights (2021/22)

ZOOM Features Highlights (2020/21)

Additional Resources