There are various ways to join audio in a Zoom meeting:
- VoIP: Audio that runs over the Internet
- PSTN Toll Free: Toll-free calling in from a telephone
- PSTN Toll: Toll calling in from a telephone
- Call Me: The meeting will call your telephone (in the Audio settings in the meeting interface)
When scheduling a meeting, click "Both" in the Audio Options. This will let your participants join audio from their Internet-enabled device, such as their computer, or via their telephone. The ability for users to join the same meeting from VoIP, toll, toll-free, and international numbers is a special feature most providers don't offer - but Zoom does!
When you join a meeting, Zoom will default to whatever audio option you used last time. If you haven't joined audio or you want to change the audio source, you click "Audio" in the bottom left corner of your Zoom interface to pull up the audio menu. Note that toll-free and Call Me are available to those who have purchased Zoom Audio's plan.