Skype for Business Certified IP Phones with Microsoft Teams

mclark2112 I'm adding KruthikaPonnusamy  who is on point for Teams Phones.

Some quick answers to your questions though:
- Your YL T-48S phones are not native Teams phones.  They work with Teams only through a gateway we operate.  That GW will continue to work until June 2023.  After that, the phone can be reflashed to Open SIP FW and will operate via a SIP gateway we announced is coming for Teams.  They will work as "standalone" with Teams as you say, but their experience will be more limited than full native Teams phones

- We will not have BToE or equivalent support for non-native phones working through a gateway

- We do have BToE equivalent functionality, which we now simply call "Better Together", for true native Teams Phones

- you can find native Teams phones here:  https://www.microsoft.com/en-us/microsoft-365/microsoft-teams/across-devices/devices/category?devicetype=34 

Hope this helps, and Kruthika can add more color as needed. 
- your