Microsoft Teams supports a range of Microsoft Teams Certified hardware phone devices manufactured by Poly, Yealink, Creston, AudioCodes & Lenovo. You can see a full list here Microsoft Teams Enabled Devices (https://www.microsoft.com/en-us/microsoft-teams/across-devices/devices/category/desk-phones-teams-displays/34). It's also capable of supporting your old Sip Phones like Cisco IP Phones & Poly VVX Series.