Mitel 50005405 Cordless Handset with Charging Plate (Refurbished)More Information: Mnfr Part #: 50005405 Initiate call end call, volume control, and mute keys. Place outbound calls while mobile with programmable auto speed dial upon off hook. Mitel Speak@Ease or 0 for secretary speed call. 8 hours talk time 43 hours standby time Operating range of up to 300 feet in a typical office environment. LED indicators on the Cordless (DECT) Module and Cordless (DECT) Handset indicate both connectivity and charging status.