Definition: Voice over New Radio (VoNR) is the technology that enables voice calls to run natively over 5G networks, specifically on 5G Standalone (SA) architecture. Unlike earlier generations – where voice relied on circuit-switched systems (2G/3G) or packet-based solutions like VoLTE in 4G – VoNR is fully integrated into the 5G core network and uses IP-based communication throughout.

Voice over New Radio (VoNR) explained

In the early stages of 5G deployment, most networks used a setup called Non-Standalone (NSA), where 5G handled data traffic but voice calls were still routed through 4G using VoLTE. This meant that whenever a user made or received a call, the device often had to switch from 5G back to 4G, introducing slight delays and inefficiencies. VoNR eliminates this fallback by allowing both voice and data to remain entirely within the 5G environment.

One of the key advantages of VoNR is improved performance. Because it operates on the 5G core, it benefits from lower latency, faster call setup times, and enhanced voice quality – often referred to as “ultra-HD voice”. Additionally, it enables more efficient use of network resources and reduces the signalling overhead associated with switching between different radio technologies. For users, this can also translate into better battery efficiency, as the device no longer needs to maintain simultaneous connections to multiple network layers.