The Jabra Link cable #14201-17 for Digium and Polycom IP phones that support electronic hook switch. See list of compatible Digium and Polycom phones below. This cable will allow for remote answer/hang-up of calls. When you get an incoming call a ringtone in headset will notify of a call. With this cable you do not need a mechanical "lifter" to remotely answer calls with the wireless headset. Everything happens electronically.
Note: Polycom SoundPoint IP300, 301, 500, 501, 600 and 601 do NOT support EHS capability. If you wish to answer/disconnect with these models when wireless headset you will require the Jabra GN1000 Lifter instead of Jabra Link cable #14201-17.