Here is what the brand says on its website:

"Microsoft (MS) variants, which are certified for use with Microsoft Teams, support a plug-and-play experience with the following features:

Automatic selection of the MS variant as the default communication device.
Microsoft Teams LED notifications visible on the controller.
Use of the Answer/Hang Up button on the controller to support interaction between the device and Microsoft Teams on a computer.
If multiple MS devices are present, call prioritisation will send audio to the device that was used to answer an incoming call.
If you are using an MS variant with a different softphone client, the MS variant should work in the same way as a UC variant with regard to audio and standard features such as answering/terminating calls, adjusting the volume and mute.

If you are not using Microsoft Teams as a softphone client, we recommend using a UC variant, which is certified for use with all major UC platforms, including Cisco, Mitel and Avaya. If you use a UC variant with Microsoft Teams, the plug-and-play experience will not be available. You can manually configure the audio and call control features by selecting the UC variant as the default communication device in Microsoft Teams settings."