Plantronics AP-1 HookswitchPlantronics AP 1 Hookswitch Small, compact and discreet, the Plantronics AP 1 hookswitch adapter allows anyone who is using the Plantronics AWH65 wireless headset to make or receive phone calls without having to lift up the handset itself. This device eliminates the necessity for the HL10 mechanical lifter, and it is fully compatible with all phones belonging to the Avaya 5000 range.