Sprint Nextel (NYSE:S) will be working with Cablevision's small-business division to offer discounted wireless services to businesses with up to 100 employees. Sprint is joining Cablevision's Optimum Business Benefits, a customer-loyalty program that includes participants such as FedEx for shipping and ADP for discounted payroll services. The deal allows qualified Cablevision business customers to apply for up to a 15-percent discount on Sprint wireless service and rebates on mobile devices. However, the deal could form the basis for a deeper partnership down the road between the wireless carrier and MSO. Cablevision has expressed interest in partnering with T-Mobile USA to add a cellular component to its current Optimum Wi-Fi service. Cablevision has said that AT&T's (NYSE:T) proposed $39 billion acquisition of T-Mobile would deprive it of T-Mobile as its best potential cellular network partner. Article