AT&T is a provider of telecommunications, media, entertainment, and technology services for consumers, content creators, distributors, and advertisers.
Cisco is a global company that designs and sells a broad range of technologies across networking, security, collaboration, applications, and the cloud.
Nokia is a global vendor in the network and IP infrastructure, software, and the related services market.
Verizon Communications (formerly Bell Atlantic) is a company providing communications, information, and entertainment products and services.
T-Mobile USA provides wireless solutions.
Charter Communications is a television, internet and voice company.
Rogers Communications is a communications and media company providing wireless communications, cable television, Internet, telephony, and other services.
Juniper Networks is a company that designs, develops and sells networking products and services.
Windstream provides voice and data network communications, and managed services to businesses in the United States.
Polycom is a multinational corporation that develops video, voice and content collaboration and communication technology.
F5 Networks develops, markets, and sells application delivery networking products.
Harmonic Inc. is a technology company that develops and markets video routing, server, and storage products for companies that produce, process, and distribute video content for television and the Internet.