The service, named 4G Super Voice, is said to enable the operator to provide voice calls over its 4G network with the use of VoLTE. In addition, Three has also rolled out its 800MHz spectrum which it gained in the 4G auction in 2013.
“Not being able to use your phone as and when you want, no matter where you are, is one of the biggest pain points for customers,” said Danny Dixon, director of customer strategy at Three. “Today’s announcement is the latest step in our efforts to offer customers a quality experience on what is already the UK’s most reliable network.”
Three’s chief technology officer, Bryn Jones, said: "Indoor coverage across the industry is always the hardest problem to solve, so all networks, whether it's 2G, 3G or 4G will always have coverage blackspots."
"By the end of the year, one million of our customers will have access to better indoor coverage and be able to use their phones in more places than ever before. We are proud to be the first network to roll this out across the country," he added.
The operator’s 800MHz and voice coverage will reportedly cover 53% of the UK population at launch; it aims to increase that to over 65% by the end of 2015.
