The Bulgarian Communications Regulation Commission (CRC) is to undertake measures to reduce the price of mobile calls to at least EU average levels, in accordance with the Commission's Termination Rates Recommendation. According to the chairman of the CRC, this could be achieved by decreasing mobile termination rates, i.e. the charges that telecoms operators impose horizontally for the use of each others’ networks. This may cause the price of inter-network mobile calls to drop by up to 25%.  

The full text of the position of the European Commission in this regard can be found here.