You will need 3 numbers to join a meeting: Telephone number – this will be the number you will dial to join. – Meeting ID – this is a 9 to 11 digit. You have the ability to dial yourself or another user to join your meeting by phone device. You can access both these features upon joining or hosting a meeting.      

Google Meet (formerly Hangouts Meet) – Free Video Meetings.

  You will need 3 numbers to join a meeting: Telephone number – this will be the number you will dial to join. – Meeting ID – this is a 9 to 11 digit. You have the ability to dial yourself or another user to join your meeting by phone device. You can access both these features upon joining or hosting a meeting.