Granite Launches Granite Guardian FlexEdge to Deliver Single-Source Network Management Share Article Communications Provider Introduces Universal Edge Device to Manage Security, SD-WAN, IP Communications, POTS Lines, Cellular Data and More Granite Launches Granite Guardian FlexEdge to Deliver Single-Source Network Management "Granite Guardian FlexEdge enables us to deliver any and all of our best-of-breed managed network solutions without deploying proprietary hardware. With the push of a button, FlexEdge can become a firewall, an SD-WAN router, an SBC, or cellular data endpoint. It’s the total package." QUINCY, Mass. (PRWEB) December 21, 2020 Granite Telecommunications, a $1.6 billion provider of communications services to multilocation businesses and government agencies, today announced the availability of Granite Guardian FlexEdge, a universal customer premises device that consolidates multiple network functions, such as firewall, SD-WAN, session border controller (SBC), cellular data router and more.