MOBILE-phone operators were told at a meeting with the Ministry of Posts and Telecommunications on Friday to report back to the government in two weeks with details of their operating costs and profits, a source with knowledge of the meeting said. The meeting was part of efforts to resolve a price war that the government says is destabilising the sector and costing the government tax revenues. The ministry said it hopes to use the cost information to set a minimum tariff for calls in the sector, though it is not clear whether that will be imposed by the government or must be decided among operators.