APC-40 Savi Ehs Cisco 38350-01 Electronic Hookswitch Adapt
Plantronic APC-40, SAVI EHS,CISCOPlantronics  [38350-01] APC-40 Savi  Electronic Hookswitch (EHS) cable forCisco IP Phones - communicates electronically withthe phone, eliminating the need for the HL10 lifter.