If the OP could share what model of lights peed headset he was using.
Yep. That was one of a number of issues with my old Telex 50s and the reason I switched to a Bluetooth Lightspeed.The cable is no good for your phone. The older lightspeed came with a couple of different cables for headphone-to-cell connection but there's no guarantee they work with all phones (no standard on the phone side).