The Plantronics APN-91 Electronic Hook Switch (EHS) module for certain NEC phones enables wireless headset users to place or receive calls without the need to lift your handset.  This eliminates the need for a mechanical device such as the Plantronics HL10 Savi handset lifter. 

When a call is received, you will hear a tone in your ear.  Simply press the talk button to answer the call.   Press again to hang up.

The APN-91 NEC EHS supports the NEC DT330, DT730 and DT750 model phones.

The Plantronics NEC EHS only works with the following Plantronics wireless headsets: CS510, CS520, CS530, CS540, all Savi 700 series, Savi WO300 & Savi WO350. The only option for earlier model headsets is the HL10 handset lifter.