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Wireless analysts believe Voice over New Radio (VoNR) should be considered a prerequisite for successful 5G deployment in standalone operation (SA).

That’s because in cloud-native 5G standalone networks, operators can deliver high-quality voice services without having to rely on LTE as an anchor. Instead, operators can offer Voice over 5G New Radio (VoNR), which fully utilizes the SA architecture of 5G networks and provides significantly lower latency and improved sound quality, while providing 5G speeds for data-driven activities throughout the duration of the voice calls.

Beyond providing improved voice services, VoNR is expected to make possible many 5G SA-enabled data services like video conferencing or augmented and virtual reality features.

To back up a moment: VoNR network architecture consists of a 5G RAN and 5G core and, like 4G LTE networks, 5G voice calls are implemented as end-to-end Voice over IP (VoIP) connections managed by the IP Multimedia System (IMS) core. Originally developed by the 3GPP, IMS specification is a standards-based architectural framework for delivering multimedia communications services.

Experts in this area believe the advantage of integrating IMS into the deployment scenario is that IMS manages (like in VoLTE) the Protocol Data Unit (PDU) session establishment with the relevant QoS flow for optimized voice quality.

Most feel this IMS architecture will play an increasingly important role in 5G VoNR. While IMS can provide voice services for any type of access as well as for any 5G-deployment model, 5G is not as flexible and absolutely has to have an IMS network to handle voice services no matter the type of deployment.

Carriers insist that high quality and seamless voice calling remains a must-have service for their 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.

Want to learn more? Tonex offers 5G Voice over NR (VoNR) training, an innovative 3-day bootcamp style course that covers VoNR basic concepts, VoNR architecture, VoNR network nodes, VoNR protocols, VoNR interfaces, session handling, media and control, VoNR frameworks and profiles, VoNR operational scenarios, QoS, security, emergency services, SMS, charging and roaming.

Our VoNR Training course covers all aspects of  VoNR, the next innovation in the 5G Standalone (SA) deployment, 5GC in conjunction with IP Multimedia Subsystem (IMS) and SIP to deliver various services such as voice, SMS, video and other services such as IM and Presence.

For more information, questions, comments, contact us.

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