Click your profile picture at the top of Teams, then select Settings > Calls. Under Call answering rules, choose Forward my calls, and then select where you want your forwarded calls to go: voicemail, another person, or a call group.
Tip: You can always set up a delegate to forward your calls to.
1) Under Call answering rules, select Calls ring me.
2) In the Also ring menu, select Call group.
3) Under Add people, add the people you want in your call group. You can add up to 25 people.
4) Go to the Ring order menu and select All at the same time to ring everyone simultaneously or In the order above to call people in 20-second intervals. If your call group has six or more people, incoming calls will ring all of them at the same time.