This document discusses how to build a business case for call intelligence tools by quantifying their return on investment (ROI). It recommends identifying areas of added value from a call intelligence tool, measuring the estimated value in each area, and checking estimates against actual results. As an example, it outlines how Dish quantified ROI from their call intelligence tool across areas like campaign optimizations, data integration, and enabling digital capabilities. The document stresses that ROI calculations need to account for attribution across all levels of the marketing funnel.