If this is a corded landline phone, not sure of any possible way to make this wireless outside of adding a wireless headset to the landline phone. For example, a wireless headset like the Adapt 30 works with corded landline phones. More on reddit.com

Is it possible to move the desk fan, so it blows from a different direction, and not directly at the mic boom? The 5200 is designed for people on the move and has WindSmart technology to reduce wind noise. No office headsets have that feature, as wind is not usually an indoor issue. If you like the 5200, you could try the 5200 Office, and connect it to the 2.5mm jack with a converter like this: https://www.amazon.com/Headset-Buddy-Female-Adapter-RJ9-PH25/dp/B005OD944Q More on reddit.com

Unfortunately there's no Bluetooth adapter we're aware of. That being said, you may be able to add the MDA220 to be used with the Voyager 8200 UC, but the mic quality may be less than ideal for you. If microphone quality is important, you could consider getting the Orosound Tilde Pro instead to go with the MDA220. We haven't personally tested this so we can't say for certain if it will work 100% or not, but in theory it should. You'd connect the included USB Dongle that comes with the headset to the MDA220, the MDA220 connects to the RJ9 handset port of your phone, then you'd pair your headset to the computer via Bluetooth. Otherwise, you could consider another headset made for your application that connects to both your desk phone and computer like the Adapt 30 (although not over the ear). More on reddit.com

Most VoIP phones you can take off the handset and just plug in a headset which is wired or wirefeee More on reddit.com