joining a meeting as host remote

Initially please excuse my appearance. I have a new to hosting. I set up meeting using the web portal on my office computer. I think, therefore, that is the host. However I want to join from a remote location (using a different email) what I did was I sent an invitation to that personal email. Can I and everyone else join the meeting or do I have to have the meeting open on my office (host) computer for the meeting to happen in for people to join? Thank you