Nortel Meridian M3905 Display Phone NTMN35 (Platinum/Refurbished)The Nortel Meridian M3905 Call Center phone is designed to satisfy the specialized needs and enhance the productivity of the most demanding call center agents and supervisors. The Meridian M3905 Call Center phone includes a direct connect headset for agents, as well as a supervisor port. This headset port works in conjunction with the Supervisor Observe button that allows them to listen in on an active call, or listen and talk. The Meridian M3905 Call