Additional meeting and call-related features and issues within Microsoft Teams for business
Hello! My name is Mustafa, and I am an Independent Advisor as well as a long-time Microsoft user. I'm sorry that you are experiencing this issue, and I am hopeful that I will be able to help you find a satisfactory solution.
It is something that is from your settings, I have that feature in my android phone as well, Go to Teams settings>notifications>calls>Vibrate from there you can turn it on or off. I have attached a screenshot of what it might look like.
Please let me know if this doesn't work or if you need further assistance.
Warm Regards,
Mustafa