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Cannot make or receive calls on 4G

When I set my phone to 4G (recommended), I cannot make or receive calls. Data and SMS work fine.

When I set my phone to 3G, I can make and receive calls. Data and SMS work fine.

The phone is running Oreo 8.1. Has anybody got some ideas as to what the problem is?


2 people have this question

Tech Wizard

If a restart of the phone (it may prompt to accept updated settings) does not help, then I suggest refer to your mobile operator and ask if they need to enable something at their end, or if a new SIM card is required for VoLTE to work?


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Hans


1 person likes this

Thanks Hans. I had done a factory reset which didn't fix the problem so I will approach my operator.

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