Voice over NR

Voice over New Radio or Voice over 5G (acronym VoNR or Vo5G) is a high-speed wireless communication standard for voice services over 5G networks, utilizing mobile phones, data terminals, IoT devices, and wearables.^[1] Like 4G networks, 5G do not natively support voice calls traditionally carried over circuit-switched technology.^[2] Instead, voice communication is transmitted over the IP network, similar to IPTV services. To address this, Voice over NR (VoNR) is implemented, allowing voice calls to be carried over the 5G network using the same packet-switched infrastructure as other IP-based services, such as video streaming and messaging.^[3]

Similar to how VoLTE enables voice calls on 4G networks, VoNR (Vo5G) serves as the 5G equivalent for voice communication, but it requires a 5G standalone (SA) network to function.^[4] VoNR offers better voice quality than its 4G predecessor, primarily due to the inherent lower latency of 5G NR, allowing for faster call setup and improved overall communication.^[5] Additionally, VoNR removes the LTE anchor, enabling the voice call to stay entirely within the 5G network.^[6]

VoNR (Vo5G) calls are generally charged at the same rate as other calls, and to make a VoNR call, the device, its firmware, and the mobile telephone provider must all support the service and work together in the specific area.