Landline Voice Demand is Overstated by as Much as 30% in U.K., 22% in U.S. Market

If 80 percent of U.K. fixed network customers buy a bundled service including both voice and internet access, and if 40 percent are not actually using their phone service, then actual usage of landline voice is actually overstated by about 30 percent. 

source: Ofcom

In the U.S. market, perhaps 55 percent of fixed network customers buy a bundle. If 40 percent of those customers do not actually use their phone service, U.S. fixed network voice demand actually is overestimated about 22 percent. In other words, customers “buy” voice service as part of some bigger bundle that saves them money, but do not actually use the phone service. 

source: Statista

The point is that landline voice demand actually is lower than the number of sold lines would suggest.