A1 Slovenija is a telecommunications company operating the second largest mobile network in Slovenia.[6] After initial losses, the company's shares were in February 2001 purchased by Telekom Austria Group, making Si.mobil a part of a leading group of mobile service operators in Central and Eastern Europe.[9] An important step forward was signing a partnership agreement with Vodafone in January 2002.[10] From September 2003, the company is presented under the dual brand Si.mobil - Vodafone[5] [ˈsiːmɔbil ˈʋoːdafɔn].In 2004, the company was one of the first operators worldwide to offer EDGE,[5][11] and in 2006, they introduced its own UMTS/HSDPA network.