(Telecompaper) BT has announced its first major plans for EE since acquiring the mobile operator in January, including bringing the company's customer service back to the UK and significantly expanding 4G coverage. The operator said it would on-shore 600 customer service roles, meaning all EE customer calls are answered in the UK and Ireland by the end of the year. The investment in coverage will focus on filling in outdoor 'not spots' in current 4G areas, and expanding 4G coverage from 60 percent of the UK landmass currently to 95 percent by 2020.