Yup! This could all be resolved by a carrier update, not necessarily an iOS update.
Only thing is, people were experiencing call drops on 15.5 RC. And the carrier version didn’t change on 15.6. So it can’t be the carrier - for EE anyway.
Difference was for me was the modem change
although I think that the operator has nothing to do with it, because in 15.4.1 it had version 50, and in 15.5 it is still the same. in 15.4.1 everything was working fine, and in 15.5 the problems appeared. the only thing that changed is the modem, that in fact here people use the beta with the 15.4.1 modem the problems were solved, so you will have to release a 15.5.1 version to downgrade the modem or update it well, and I hope it will we receive these days
Exactly what I was typing going back through all the beta forums modems and carriers.
Carriers haven’t changed. It was the modem. ??
So I hope the next beta has an updated modem but not back to the RC modem, a newer one please tomorrow ??