Electronic Hook Switches (EHS) communicate electronically with your phone giving your wireless headset answer/end and ring alerts remotely. The use of an EHS cable eliminates the need for an HL10 handset lifter. Control Adapter Features: Answer and end calls from up to 300 feet away from phone Connects with one simple step Provides the freedom to move about the office and multi-task RoHS Compliant Compatible with the following phones: Polycom Phones: SoundPoint IP 320/321 SoundPoint IP 330/331 SoundPoint IP 355 SoundPoint IP 430 SoundPoint IP 550 SoundPoint IP 560 SoundPoint IP 650 SoundPoint IP 670 VVX 1500 Plantronics CS500 Series Wireless Desk Phone Headset Systems: CS510 CS520 CS530 CS540 Plantronics Savi 700 Series Wireless UC Headset Systems: W710 W720 W730 W740 W745 Plantronics Savi Office Wireless Headsets: WO100 WO200 WO300 WO350
