5G

VoLTE 9 min read

You’re on 5G, you start a phone call, and the icon at the top of the screen quietly changes to 4G. Hang up, and a few seconds later...

14 October 2026 Read the guide

VoLTEsim

The UK's technical authority on Voice over LTE. SIM cards, PSTN replacement, 2G/3G sunset guidance, and VoNR.

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