To change your settings, select your profile picture at the top of Teams, then Settings. Choose Calls to get to your call settings.
Note: If you don't see Calls on the left side of Teams, talk to your IT Admin.
Here, you're able to:
Set your call answering rules, including forwarding them directly to voicemail.
Change your voicemail greeting.
Choose ringtones for your calls.
Turn on Text Telephone (TTY).