Dialog Axiata gives 5G a voice in VoNR trial

Dialog Axiata gives 5G a voice in VoNR trial

Sri Lankan telco Dialog Axiata says it has successfully completed what it claims is the first-ever trial of Voice over New Radio (VoNR) on a Standalone (SA) 5G trial network in Sri Lanka.

VoNR – also known as Voice Over 5G – is the 5G version of 4G’s VoLTE, which enables voice calls to be placed over a packet-switched network. VoLTE allows 5G users to make voice calls via the underlying 4G network.

VoNR gives 5G SA the same capability, which means call set-up times for 5G users will be somewhat faster. Dialog Axiata says 5G-based calls will also benefit from the faster data speeds and lower latencies of 5G in terms of voice quality.

Meanwhile, making its 5G network voice-ready means Dialog Axiata can more easily migrate more traffic onto its 5G network, which means more efficient network and spectrum usage.

Huawei Technologies is Dialog’s technology partner for the VoNR test.

Dialog Axiata has been trialling 5G since its initial fixed-wireless 5G pilot in 2018. It opened its 3.5-GHz 5G trial network to subscribers in 2020, and earlier this year wrapped up a successful trial of millimetre-wave 5G. Its trial 5G network currently covers over 70 locations across Sri Lanka, including Colombo and several key cities.


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