Plantronics APS-11 electronic hookswitch (EHS) allows for electronic call answer/end capability from the wireless headset from anywhere within range without the need for a mechanical handset lifter.
Plantronics APS-11 Electronic Hookswitch EHS Cable is compatible with these phone models: Mitel Aastra 6735i, 6737i, 6739i, 6753i, 6755i, 6757i, 6757i CT, 6771, 6773, 6775, 6773 IP, 6775 IP, 5370 IP, 5380 IP, 5370 IP, Office 70, Office 80 and Siemens Open Stage 40, 60, 80, Siemens Optipoint 410, 420, 500, 600 (with acoustic adapter) and Zultys ZIP 51E, ZIP 53E, ZIP 53i, ZIP 55i, ZIP 57i, ZIP 59i.
The APS-11 EHS is made for use with these Plantronics Wireless Headsets: CS540, CS545-XD, CS530, CS510, CS520, Savi W710, W720, W730, W740, W745, Voyager Legend CS.
Special Note ONLY for Mitel Aastra Phones 6735i, 6737i, 6753i, 6755i, 6757i and 6757iCT: You will need to enable EHS (electronic hookswitch) on your phone settings by pressing the spanner button on the phone, then selecting "Audio" then changing audio as "headset/speaker" and headset as "DHSG." Then please reboot the phone and then press the "talk" button on the headset to get dial tone on the headset. In order to make the Plantronics aps-11 EHS electronic hookswitch (37818-11) work with your phone, you will need an additional cable called the Mitel/Aastra DHSG cable (Mitel/Aastra part D0062-0011-34-00). Please see below to add this Aastra DHSG cable to your cart.