 The structure was to house 6,000 employees from the company's six central offices, who would work with 120,000 telephones, as well as mechanical equipment to support the company's equipment.The initial design called for a height of , with of office space, and of commercial ground-floor storefronts.In addition, the building would be erected with a steel-and-concrete frame, as well as facade trim made of limestone and buff-colored brick.