From 1 January 2011, mobile users will be able to keep their phone number after changing operators, the Serbian telecommunications agency Ratel announced. According to the regulations on number portability published in the Official Gazette, businesses and concumers will be able to maintain a complete mobile number. Users will pay for the transfer of the number with a RSD 200 fee to the new operator. After the transfer, the new operator is obliged to pay RSD 1000 to the company from whose network the number was taken