Telstra and Ericsson make VoNR call using redcap

  • August 23, 2023
  • Steve Rogerson

Telstra has performed Australia’s first implementation and validation of 5G technology using Ericsson’s pre-commercial redcap (reduced capability) software on its 5G commercial network.

Telstra and Ericsson used one of the new 5G features, voice over new radio (VoNR), where a voice call was made using a MediaTek redcap testing device. The VoNR call on frequency division duplex (FDD) was made in Box Hill, Victoria, and signals the start of ongoing testing and validation of this 5G capability on Telstra’s network.

Redcap is a 5G capability that builds on the industry progress of 4G IoT technologies such as Cat-M and NB-IoT. The benefits delivered include reduced device chipset cost, complexity and power consumption while supporting higher data rates and key 5G service enablers delivered via 5G standalone.

This Australian first VoNR call using redcap on Telstra’s commercial 5G network shows how the software can enhance the functionality of wearables such as smartwatches. Redcap will also enable a number of service capabilities such as longer battery life, AR and VR functionality, and enhanced video monitoring.

“This evolution of the latest 5G technology capability provides so many more opportunities for intelligent IoT devices to enhance our everyday lives,” said Nikos Katinakis, Telstra group executive. “Using less power and being capable of delivering our customers more value is something that Telstra is incredibly committed to.”

Emilio Romeo, head of Ericsson in Australia and New Zealand, added: “With this Australia-first voice over new radio call using the Ericsson redcap software, Telstra is paving the way for new 5G use cases and enhancing uses across consumer, industrial and enterprise devices that don’t require the full range of 5G’s capabilities. We’re pleased to be working with Telstra and MediaTek to make this voice over new radio call, and push the boundaries of technology by bringing greater 5G capabilities to the ecosystem.”

Ericsson ( helps communications service providers capture the full value of connectivity. The company’s portfolio spans networks, digital services, managed services and emerging business. Ericsson is based in Stockholm.

Telstra ( is Australia’s leading telecommunications and technology company, offering a full range of communications services.