This link explains Zoom's Personal Meeting Room and personalization.

Zoom provides you with your own virtual meeting room called your personal meeting ID (PMI). You can start your PMI anytime you like. Your PMI has a static ID number and a link that never expires, making it easy for people quickly join your meeting. This is useful for anyone who hosts meetings with the same group on a regular basis, such as student study groups, departmental project teams, or students in a course.

You can also customize your PMI to make it easier for others to remember the log in information. For example, you can change your PMI to your office phone number or set your personal link to your first and last name.

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