Many think that VoIP is the solution to all telecom problems. It is a solution, but not to all problems. It does not give you something for nothing, in the long run, though in the short term, something may be had for almost nothing. The articles describes the problems faced by VoIP operators in the US, where the basic infrastructure is already in place. In countries of the South, we have to keep in mind that the fiber has not been laid; the households have not all been connected; etc.