Nokia 8 unable to make/receive calls

[Timanfaya]

Text and data are still fine, so I'm assuming the issue is related to the 3G shutdown.

Via How to ensure your phone is ready for the 3G switch off and https://devicesupport.three.co.uk/guides/device/Nokia/8  supports VoLTE.

Any ideas?

[Geluk]

My Nokia supports VOLTE but NOKIA Support advised wasn't actually enabled on my phone

due to their requirement to thoroughly test with every TELCO 😞

[Timanfaya]

Thanks for the clue!