Nobody has ever mentioned that brand, and I hadn't heard of them. Office/professional quality DECT headsets need to interface with the phone's manufacturer-specific method of signaling the phone to go off-hook or on-hook ("handset lifting"), and they need to connect audio via the phone's RJ-9 headset jack, not USB. The problem is, there is no one standard method for this.
The OBi 2182 is an odd duck, in that they are out of production and you won't get anyone at Poly to be able to help you with the headset. The 2182 only interfaces with Jabra (formerly GN Netcom) or Plantronics headsets. There are two different methods of controlling the phone from the headset:
--a electromechanical handset lifter, which sticks onto the phone and has a little motor that raises and lowers the handset to go off/on hook when you press the button on the headset. This method fits many phones, as long at the phone has a surface available and aligned to attach the lifter via two-sided tape.
--a "Electronic Handset Switch", or EHS. EHS takes the place of physically lifting the handset. It requires a EHS cable/dongle to adapt the headset to the specific brand of phone. They're expensive. Again, the 2182 does support EHS, but only for the two brands I mentioned, and only with extra cables.
If you look at the Amazon listing and scroll down to the "Frequently bought together" section, you'll see what I mean.
If you don't use a handset lifter or EHS, then you have to be at your desk to physically lift the handset to answer the call.
I suggest contacting the company for advice; they may have another suggested product for home use.
Note that the phone does support standard USB-attached corded headsets, but of course, you can't roam. It also supports Bluetooth headsets, but the audio quality can be pretty bad, and the range is short.