Microsoft Teams Phone allows you to bring multiple people into the same call easily, whether you’re already on an active call or starting a conference call from the beginning.

Start a conference call from the beginning

1. Click the Calls icon on the left side of the application.
2. In the dial pad, enter the names or phone numbers of the participants.
   Note: As you type names or numbers, a drop-down menu will appear with potential contacts to choose from.
3. Click Call to start the conference.
   
4. A Teams calling window will open, and the calls will begin.
   

Add a participant to an active call

1. While on a call, click the People icon.
2. In the Invite someone or dial a number box, enter the name or phone number.
   
3. Select the person from the search results to call them.
   
4. They will be added to the call once they answer.