All Zoom meetings are accessible via both computer and phone.
Attending a Zoom meeting via phone:
If you receive an invitation for a Zoom meeting, it should include a list of phone numbers as well as the meeting ID number that you will need in order to participate by phone (see image at the bottom of page for an example).
The host does not need to modify the meeting in any way in order for you to participant by phone.
Setting up a Zoom meeting right now via the Desktop Application:
Open the Zoom application
Click on the "New Meeting" icon.
A window with your computer's camera view should appear (usually looking at yourself).
A smaller window should also appear that asks how you would like your audio to be connected to the meeting. Click "join with computer audio." Note that it is also possible for you or any other participants to join via phone. If you have difficulty with the audio,...