Zoom Meetings "Calling" User

For one of our users, intermittently meetings will "call" her phone and desktop app. The phone will ring but nothing shows in call history, and the desktop app will show as well. It always happens at the scheduled start time of the meeting and on the cell phone there's no "decline" option. It's almost as if it is a forced reminder. 

We DO NOT have the Call Me feature in our tenant. 

We do have Zoom Phone, but this is happening for Meetings specifically and randomly.