Viacom In 2007, Viacom’s existing wireless policies were entangled in its separation from CBS Corporation. Different accounts were kicked between the two companies which neither claimed ownership. Employees were able to expense large amounts for their cell phones each month, as Viacom did not own the devices themselves. Cellution was brought in to help untangle the wireless accounts and trim excess spend from Viacom’s wireless expenses. Download this case study Back to Case List