Meetings
You can easily schedule a meeting and invite participants from the Lifesize app home page. Invitees can be registered Lifesize users or guests.
You can also invite attendees to a meeting from the Meetings page. Select or hover over the meeting room and then select in the highlighted row to schedule the meeting and choose how to send the invitation as stated above.
You can also send invitations directly from G Suite, Google Calendar and Microsoft Outlook.