There are 3 sections to the MX10's compatibility:
To check if the MX10 is compatible with your telephone, please
click this link
and perform the appropriate compatibility check.
The MX10 audio processor uses 2 x 3.5mm audio jacks to connect to your computer via a sound card.
The MX10 is compatible with any of the
Plantronics standard office range corded headsets
. The only headset currently listed on that page that will not be compatible is the SupraPlus Digital headset.