Zoom: Host or Join an Audio-Only Meeting

You can use a landline or mobile phone to join or host a Zoom meeting via audio conferencing. This is useful when:

  • you do not have a microphone or speaker on your PC/Mac,
  • you do not have a smartphone (iOS or Android) while on the road, or
  • you cannot connect to a network for video and VoIP (computer audio)

In this article:

Hosts: Host an audio-only meeting

Note:  When you host an audio-only meeting, anyone who has the call-in number and meeting ID can join it - even if they are not from the University of Minnesota.  This is true even if you have previously enabled the Only Authenticated Users May Join feature of Zoom for videoconference meetings.

Set up a Zoom meeting

To set up an audio-only meeting, begin the scheduling process as you normally do. In the meeting settings,

  1. Use your Personal Meeting ID.
    This will make it easier for your participants and you to remember the number needed to enter the meeting.
  2. If you are concerned about the security of your audio-only meeting, consider adding a Password to your meeting. Participants will need to enter the password in order to join the meeting.
  3. Under Audio options, select Telephone and Computer Audio.
    This gives your participants the most options for how to join.
    Zoom's meeting scheduling screen. "Personal Meeting ID" is selected. "Optional security feature - participants will be required to enter this when calling into the meeting" is noted near the Password field.  "Telephone and Computer Audio" is selected under Audio.

Enter the Zoom meeting

To enter the audio-only meeting,

  1. Dial the phone number needed to join the meeting.
    You can find the numbers on your meeting invitation or a full list of international dial-in numbers at https://zoom.us/zoomconference.
  2. Enter the meeting ID - the nine (9), ten (10), or eleven (11) digit ID - followed by #.
  3. Enter the host key to start the meeting.

Phone controls for meeting host

If you have entered the Host Key to start the meeting, you will have host controls available to you through your dial pad. To hear all available commands, enter ** on your phone.

  • *4 - End the meeting for all participants
  • *5 - Lock or Unlock the meeting
  • *6 - Mute or unmute yourself
  • *7 - Start or Stop Recording
    Note: all participants in the meeting will be notified when recording is stopped or started.
  • *# - Hear the number of participants in the meeting
  • 99 - Mute or unmute all participants

Participants: Join an audio-only meeting

Enter the meeting by phone 

  1. Dial the phone number needed to join the meeting.
    You can find the numbers on your meeting invitation or a full list of international dial-in numbers at https://zoom.us/zoomconference.
  2. Enter the meeting ID - the nine (9), ten (10), or eleven (11) digit ID provided to you by the host - followed by #.
  3. You may be prompted to press # to wait, if the meeting has not already begun.

If you join by computer or mobile device later, you can enter the Participant ID to bind your phone and device session together and show your video when you speak on the phone. To enter your Participant ID once you are in the meeting, enter #[Participant ID]# on your phone.

Phone controls for participants

The following commands can be entered using your phone's dial pad while in a Zoom meeting:

  • *6 - Toggle mute/unmute
  • *9 - Raise hand