In Teams for your personal life, you can sync the contacts from your mobile device to make it easier to find your friends and family.
Tap More .
Tap Settings, then tap People.
Switch Sync my device contacts to on.
Note: If you are advised to Allow Access to Contacts, just follow the prompts on your device.
Your contacts will be available to start new chats and calls with after they are synced.
To unsync your contacts, you can switch Sync my device contacts to off at any time.