APT-31 (Tenovis) EHS 37820-11 joined-description-fields The APT-31 Electronic Hook Switch

The APT-31 Electronic Hook Switch is fully compatible with the Plantronics Online Indicator (OLI)

More wireless freedom

The CS500 XD Series offers you a choice of three comfort-tested wearing options to match your personal style:

0 and black cradle

APT-31 (Tenovis) EHS 37820-11 joined-description-fields The APT-31 Electronic Hook SwitchThe APT 31 EHS communicates electronically with the phone, eliminating the need for a HL10 lifter. The APT 31 Electronic Hook Switch is fully compatible with the Plantronics Online Indicator (OLI). The EHS cable sends a ringer alert signal to the headset anytime the phone rings, anywhere within a headset's wireless range, allowing you to move freely throughout the office without missing a call.