Can't receive calls in 4G

[Saubani]

I'm using dual sim card in my Sony Xperia XA1 ULTRA. Sim 1 is 4G and Sim 2 is 3G. I can't receive the phone calls in Sim 1. After sliding the receive button the display remains the same and can't receive the call. What's the problem? 

[Jonas]

Hi @alkemyst, sorry to hear about this.

That sounds very strange, however can you please check in Settings > Network & Internet > Mobile networks and see if you have an setting here called "VoLTE"? It usually says "Use VoLTE when the service is available".

If you have it and it's turned on, can you please try and turn it off and ask someone to call you while leaving the device on 4G and see if you can receive the call or not.

If it still doesn't work, do you have a colleague, family member or friend that has a Nano SIM card in their device that you can try in your device and see if you then can receive calls while on 4G?

Let me know how it goes!

@HarleQueen, sorry for the very late reply to your post, I have been out of office due to vacation and being sick.

Could you please try what I suggested to @alkemyst and see if that helps?

Thank you.

[Checho1]

No puedo llamar ni recibir llamadas 

I can't call or receive calls

gt

[Jonas]

Hi @Checho1, sorry to hear that.

I can see that you made a second post about this that my colleuage Martin replied to, so please have a look at the link below.

/t5/Xperia-XA1-Ultra/Cannot-call-or-receive-calls/m-p/1394231