German telecoms company Deutsche Telekom (DT) claims to have completed the ‘world’s first’ 5G Voice-over-New Radio (VoNR) call on an end-to-end multivendor network. In the innovation trial in Warsaw, Poland, the partners were able to verify the capability over a 5G Standalone (SA) network with voice and 5G data sessions in parallel. This network setup integrated a 5G Core from Ericsson and IP Multimedia Subsystem (IMS) from Nokia. The calls were completed on commercial terminals from Samsung and Xiaomi and a Mobile Test Platform from Qualcomm. DT said the addition of VoNR to the superior data transmission quality of 5G technology will allow customers to enjoy voice and data services in parallel.
‘High quality and seamless voice calling remains a must-have service for our customers in the 5G era. The addition of 5G VoNR can be a differentiator for next generation immersive applications that integrate high speed 5G data with high definition audio,’ commented Alex Choi, SVP of Strategy and Technology Innovation at DT, adding: ‘Our collaboration with best-in-class partners to validate end-to-end 5G VoNR interoperability is an important step towards the future of 5G voice services for our customers.’