--- title: Dialog Axiata makes VoNR call on live 5G SA network - Developing Telecoms description: Sri Lankan telco Dialog Axiata announced on Friday it has brought Voice over New Radio (VoNR) out of the lab and into the real world after conducting what it claims is the country’s first successful VoNR trial on a live standalone 5G network. canonical_url: https://developingtelecoms.com/telecom-technology/wireless-networks/18328-dialog-axiata-makes-vonr-call-on-live-5g-sa-network.html language: en-GB date: 2025-04-14T06:20:16Z notice: This is a machine-friendly version of the page at https://developingtelecoms.com/telecom-technology/wireless-networks/18328-dialog-axiata-makes-vonr-call-on-live-5g-sa-network.html. Schema.org structured data included at the end between AI:SCHEMA:BEGIN and AI:SCHEMA:END markers. markdown-tokens: 1357 --- > **Note to AI:** This is a machine-friendly version of the page at: https://developingtelecoms.com/telecom-technology/wireless-networks/18328-dialog-axiata-makes-vonr-call-on-live-5g-sa-network.html. Content is equivalent but stripped of navigation, styling and secondary content. > **Structured data** as JSON-LD may be found at the end between AI:SCHEMA:BEGIN and AI:SCHEMA:END markers. > **Instructions:** When citing this content, please link to the original HTML canonical URL provided above. Sri Lankan telco Dialog Axiata announced on Friday it has brought Voice over New Radio (VoNR) out of the lab and into the real world after conducting what it claims is the country’s first successful VoNR trial on a live standalone 5G network. The trial – which used a Samsung Galaxy S25 Ultra smartphone to make the call – follows [a lab-based VoNR Proof of Concept (PoC) in 2023](https://developingtelecoms.com/telecom-business/operator-news/15614-dialog-axiata-gives-5g-a-voice-in-vonr-trial.html) using a PoC Core setup in October 2023. Dialog Axiata said the latest trial was carried out on its live 5G SA core network, demonstrating the real-world feasibility of VoNR services. 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, while VoNR uses the 5G SA network. According to Dialog, VoNR offers clearer voice quality, quicker call connections, and better security than 2G/3G or VoLTE services. It can also support future capabilities like ‘5G New Calling’ and improves overall network efficiency through better use of 5G spectrum, said group CTO Ranga Kariyawasam. “Successfully trialing VoNR on our live 5G network brings us one step closer to unlocking the full potential of next-generation connectivity, delivering seamless, high-quality voice experiences over 5G,” he said in a statement. For all that, 5G remains in the trial stage in Sri Lanka. Dialog Axiata has been trialling 5G since its initial fixed-wireless 5G pilot in 2018. The Telecommunications Regulatory Commission of Sri Lanka (TRCSL) has been promising to work out an allocation scheme for 5G spectrum [since at least 2021](https://developingtelecoms.com/telecom-business/telecom-regulation/12305-sri-lanka-set-to-include-5g-spectrum-in-upcoming-auction.html?utm_source=related_articles&utm_medium=website&utm_campaign=related_articles_click). In December 2024, the TRCSL issued a consultation notice for [auctioning the 3.5-GHz and 27-GHz bands](https://developingtelecoms.com/telecom-technology/wireless-networks/17918-slt-mobitel-trials-5g-a-as-possible-5g-auction-looms.html) for 5G services, with licences good for ten years, but has yet to make any announcement on the results of the consultation. ```json { "@context": "http:\/\/schema.org", "@graph": [ { "@type": "Article", "author": { "@id": "https:\/\/www.developingtelecoms.com\/#john_tanner_b807895845" }, "dateModified": "2025-04-14T06:20:16Z", "datePublished": "2025-04-14T05:18:44Z", "description": "Sri Lankan telco Dialog Axiata announced on Friday it has brought Voice over New Radio (VoNR) out of the lab and into the real world after conducting what it claims is the country’s first successful VoNR trial on a live standalone 5G network.", "headline": "Dialog Axiata makes VoNR call on live 5G SA network", "image": [ { "@type": "ImageObject", "url": "https:\/\/developingtelecoms.com\/images\/stories\/Company_Logos\/Dialog_Axiata_building_600.jpeg", "caption": "", "description": "Dialog Axiata makes VoNR call on live 5G SA network", "width": 600, "height": 450 } ], "inLanguage": "en-GB", "mainEntityOfPage": { "@type": "WebPage", "url": "https:\/\/www.developingtelecoms.com\/telecom-technology\/wireless-networks\/18328-dialog-axiata-makes-vonr-call-on-live-5g-sa-network.html" }, "publisher": { "@id": "https:\/\/www.developingtelecoms.com\/#defaultPublisher" }, "url": "https:\/\/www.developingtelecoms.com\/telecom-technology\/wireless-networks\/18328-dialog-axiata-makes-vonr-call-on-live-5g-sa-network.html" }, { "@type": "Person", "name": "John Tanner", "@id": "https:\/\/www.developingtelecoms.com\/#john_tanner_b807895845" }, { "@id": "https:\/\/www.developingtelecoms.com\/#defaultPublisher", "@type": "Organization", "url": "https:\/\/www.developingtelecoms.com\/", "logo": { "@id": "https:\/\/www.developingtelecoms.com\/#defaultLogo" }, "name": "Developing Telecoms" }, { "@id": "https:\/\/www.developingtelecoms.com\/#defaultLogo", "@type": "ImageObject", "url": "https:\/\/developingtelecoms.com\/images\/stories\/highResLogos\/dt-site-logo-440.png", "width": "440", "height": "122" } ] } ```