The APN-91 Electronic Hook Switch (EHS) Adapter 89280-11 provides remote desk phone call control (answer/end) by pressing the Call Control Button on the headset. This adapter eliminates the need for a HL10 Handset Lifter.
The APN-91 is for use on the Plantronics Savi 700 Series, CS500 Series products, Voyager Legend CS and MDA200.
The APN-91 EHS Adapter 89280-11 is compatible with a selection of NEC professional DT Series desk phones, including the DT330, DT730 and DT750.
The NEC DT Series phones come in 2 versions, the std SIP (used with NEC product SIP@NET and 3C) and the i-SIP/N-SIP versions which are used with the SV8100, SV8300 and SV8500. The APN-91 only works with the i-SIP/N-SIP versions of the DT700 terminals.
This cable works with some (but not all) NEC desk phones. Check with The Headset Team for more information.
The Plantronics Savi OLI, Online Indicator 80287-01
is an option with the APN-91.