Private concession contracts from State enterprises, BTO 2, there are only a few. Make market telecommunications services market, the seller has a little list (Oligopoly) mobile phone service market.
BTO concession granted to private enterprises, from the second of only a few. Enabling telecom service market is a market oligopoly (Oligopoly), such as mobile marketing.
Private concession from the received BTO 2 of enterprises. There are only a few cases only. The telecommunications services market, the oligopoly market (Oligopoly) such as mobile phone service market.