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T-Mobile Launches 5G Voice

Jun 3, 2022, 9:59 AM by Rich Brome

T-Mobile has achieved commercial launch of VoNR (Voice over New Radio), the key technology that enables a phone to operate 100% on a 5G network, including voice calls, instead of relying on a 4G network. For now, the service is available only in limited areas of Portland, Oregon and Salt Lake City. But T-Mobile "plans to expand VoNR to many more areas this year." The initial launches of 5G were wholly dependent on a 4G network, making use of 5G only for specific data sessions. The launch of 5G SA (stand-alone) technology allowed phones to operate mostly on the 5G network when available, including when the phone is idle. T-Mobile launched this technology nationwide in 2020. But phones still need to switch to 4G for voice calls. VoNR addresses that last missing piece, enabling a "pure 5G" connection. For customers, the only difference for now will be faster set-up times at the start of voice calls. But the technology lays the foundation for "advanced capabilities like network slicing that rely on a continuous connection to a 5G core." Currently, the only T-Mobile phone with VoNR enabled is the Samsung Galaxy S21. But T-Mobile promises that more 5G phones will have the functionality enabled later this year, including the Samsung Galaxy S22.

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gloopey1

Jun 6, 2022, 9:42 AM

Another Benefit of 5G Voice

5G has greater capacity than LTE and is comparable, in that respect, to CDMA voice. I think that 5G will be the best of both worlds once VONR becomes widespread. LTE, despite its speediness and clarity, will never rival CDMA for voice-call capacity. 5G should be able to do both and even more.

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