Electronic Hook Switch Cable for remote desk phone call control (answer/end). This cable eliminates the need for a HL10 Handset Lifter.
This cable works with NEC desk phones. DT700/300 series ( requires a NEC technician to program ) Check with our Plantronics Product Configurator for more information.
Support; http://www.plantronics.com/au/support/product/apn-91