Mitel Superset 4015 Display Phone (9132-015-100, Light Grey, Refurbished)Mitel Superset 4015 Display Phone (9132 015 100) The Mitel Superset 4015 (Part #9132 015 100) is a reliable digital desk phone designed for Mitel business communication systems. Featuring a clear LCD display and programmable feature keys, it is ideal for office professionals and light to moderate call handling environments. Part of the Mitel Superset series, this phone offers dependable performance and straightforward operation, making it a practical