Launch 3 Telecom sells a 3Com 3C16300-SUG LINKBUILDER MANAGEMENT AGENT upgrade. They offer competitive pricing, quality customer service, and expertise in telecom products. They accept various payment methods and can provide same-day shipping with tracking for the item. Customers are covered by a warranty and return policy and can contact support with any questions. Launch 3 Telecom also offers additional services like repairs, maintenance contracts, de-installation, and recycling.