Meanwhile, voice, television, Internet and wireless services providers face subscriber defection unless they agree to offer competitors' services. As a result, media distribution has seen some unlikely alliances, such as Time Warner Cable and Sprint Nextel, competitors in the VoIP and ISP businesses. Almost all distributors these days offer triple-play bundles: voice, ISP and TV service. Quadruple-play, usually the result of an alliance, is the addition of mobile wireless as a fourth service. Here you can expect to see more consolidation, as consumers demand that media distribution become more centralized.