T-Mobile US has announced the launch of commercial Voice-over-5G (Voice-over-New Radio [VoNR]) in limited areas of Portland (Oregon) and Salt Lake City, with plans to expand the service to ‘many more areas’ this year. VoNR – based on 5G Standalone (5G SA) network technology – is initially accessible on the Samsung Galaxy S21 5G smartphone, and will be useable on various other 5G smartphones later in the year, including the Galaxy S22.
T-Mobile’s 5G SA network boasts nationwide coverage, and the cellco’s latest press release adds that with VoNR it can ‘keep devices always connected to 5G and enable future transformative applications that require a seamless 5G connection,’ adding that ‘Standalone 5G removes the need for an underlying 4G LTE network and 4G core, so 5G can reach its true potential.’
VoNR was implemented on the T-Mobile network using Ericsson solutions and underpinned by Nokia’s radio and core technology. Fredrik Jejdling, Head of Business Area Networks at Ericsson, declared: ‘The commercial launch of the VoNR service is another important step in T-Mobile’s successful 5G deployment,’ while Tommi Uitto, President of Nokia Mobile Networks, called the VoNR deployment ‘a critical step forward for the new 5G voice ecosystem’.