This document provides information about purchasing an ADC 7822 D-SERV DSU/CSU. It lists contact information for purchasing, describes the manufacturer and product, and outlines payment, shipping, warranty, and repair service options. Customers can purchase the item by phone, email, or online form and receive same-day shipping for orders placed before 3PM EST. The item comes with a warranty and return policy, and the company offers additional services like repairs, maintenance contracts, and equipment recycling.