End of Life Announcement – Plantronics APU-7 Cisco EHS Cable (PN: 83017-01) End of Life Announcement – Plantronics APU-7 Cisco EHS Cable (PN: 83017-01) The APU-7 EHS Cable is being discontinued. The APU-7 supports call control with our discontinued CS50/55/60/70 products and Cisco (8961, 9951, 9971) and Avaya (Avaya1120E, 1140E, 1150E, 1165E) phones. The anticipated last shipment date is October 10, 2014, or while supplies last.