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Ericsson and MediaTek test voice for 5G Standalone networks

Ericsson has carried out an interoperability test with MediaTek, demonstrating 5G voice over New Radio (VoNR). Vendors and operators are keen to avoid the mistakes of early 4G, when the continuing need to support cellular voice, but in an IP not circuit-switched network, was almost forgotten. Voice over LTE (VoLTE), which requires an IMS (IP Multimedia Subsystem) was slow and difficult to deploy, and its standardization was almost an afterthought, so operators had to rely on falling back to circuit-switched 2G or 3G networks for many years (many still do). In current 5G Non-Standalone deployments, voice is still enabled by VoLTE and the 4G core but when operators move to Standalone and a 5G core, they will need to support…

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