Mitel Superset 4015 9132-015-200 Display Phone (Dark Grey/Refurbished)The Mitel Superset 4015 is ideal for users who require access to feature rich telephony. The Superset 4015 provides users with information about incoming calls as well as a wide array of call handling features. The Superset 4015 is ideal for technical support staff, office workers, sales agents, customer service departments and more. Key Features: Mfr. Part # 9132 015 200 20 character digital display screen for displaying caller ID, call status, and