Our office has just changed to a Panasonic phone system.
the phone is a KX-DT543
I have a Plantronics CS55 wireless headset.
the phone has an EHS or electronic hook switch port, looks like a stereo plug for 1/8" dia connector.
Plantronics is clueless although they have interfaces for multiple other phone manufacturers.
Does anyone have any experience or technical information about the interface ?