Though it is understandable why telecom executives would prefer a steady, predictable, slow decline of voice revenues, there are signs that earlier forecasts were too sanguine. As recently as 2007, for example, International Telecommunications Union forecasts suggested stable, flat voice revenues. ITU voice revenue forecast
In fact, total telecom revenue grew by seven percent a year to eight percent a year, on average, from 1991-2004. The highest growth was in mobile telephony, with domestic and international revenues declining slightly. Voice services were, in 2007, seen as roughly stable, representing about 85 percent of total service provider revenue in 1991, and 82 percent in 2004, for example.
Even in the highly developed countries of the Organization for Economic Cooperation and Development region, voice still accounted for 79 percent of total telecom revenues in 2007... Read More
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