topic Re: Can't receive calls in 4G in XA Series

Can't receive calls in 4G

Saubani — Mon, 25 Feb 2019 14:09:37 GMT

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?

Re: Can't receive calls in 4G

Jonas — Thu, 07 Mar 2019 11:49:29 GMT

Hi @Saubani, sorry to hear about this.

Do I understand correctly that the incoming call is connected, but when you want to answer it, you are unable to do so? If that is correct, is there any change if you put the SIM card in slot 1 in slot 2 instead, are you then able to answer the call (keep the network mode on 4G)?

If you haven't tried that, please do so and let me know how it goes!

Re: Can't receive calls in 4G

Saubani — Mon, 11 Mar 2019 17:54:18 GMT

Sim 1 is 4g whereas Sim 2 is 3G.

There is no problem in receiving the call in Sim 2. But the problem is in receiving the call in the 4g. After sliding the call receiving button, the ringtone remains ringing and the call buttons get vanished. Thus I can't receive or reject the call. It goes then for a full ring.

I have not interchanged the Sim cards. I think it's a problem in the Phone application.

Re: Can't receive calls in 4G

Jonas — Fri, 15 Mar 2019 12:41:24 GMT

Hi again @Saubani!

Could you please try and move the SIM card from slot 1 to slot 2 and then change slot 2 to 4G and see if you then are able to receive calls? I just want to make sure if it's incoming calls on 4G that is the cause, or incoming calls on SIM slot 1.

Thanks!

Re: Can't receive calls in 4G

Saubani — Fri, 15 Mar 2019 13:04:07 GMT

Yes... I've interchanged the Sim cards and after that the problem has repeated in the Sim 1.

I was thinking the problem is in the 4G network. But the problem is repeating in the Sim 1, i.e. In the 3G network and the Sim 2 (I.e. 4g) is still running well.

Re: Can't receive calls in 4G

Jonas — Tue, 19 Mar 2019 14:28:24 GMT

Hi again @Saubani and thank you so much for this information!

Could you please try and restart your device in safe mode and see if there is any change when downloaded applications aren't loaded? They will be temporarily inactivated in this mode, but no data will deleted, so it's only for troubleshooting purposes.

If it is the same in this mode, try and perform a software repair using Xperia Companion. This will delete all data stored on the internal storage of the device, so it's recommend that you create a backup with the same program before you start with the repair.

Keep me posted!

NOT ACCESSING DUAL SIM IN 4G+2G MODE.

Saubani — Sat, 29 Jun 2019 16:21:38 GMT

I AM USING TWO SIM CARDS. ONE IS JIO 4G AND THE OTHER IS AIRTEL (2G). BUT THE PHONE IS ACTIVATING ONLY THE SIM CARD WHICH IS USING DATA SERVICE ONLY. I CANNOT ACCESS BOTH THE NETWORK.

Re: Can't receive calls in 4G

HarleQueen — Tue, 23 Jul 2019 06:07:57 GMT

This is the only work around so far:

Go to settings, mobile&network, mobile network, advanced, preferred network type.

Choose 3G.

If youre okay with 3g connection when wifi is unavailable, good for you. Otherwise, you will be unable to rec3ive calls everytime you switch this to 4g

Hope Sony can fix this. As I have missed a number of impt calls because of this.

#xperiaxz1 user

Re: Can't receive calls in 4G

alkemyst — Tue, 27 Aug 2019 05:59:18 GMT

I have the same issue here since a while (I'm not sure how long).

My phone is a Sony Xperia XZ1 Compact, and I can make calls, senr/receive SMS and do data traffic, but not receive calls while on 4G. The phone is reported as not connected by the operator.

If I switch to 3G, I can receive calls too.

I will try in safe mode, and ley you know.

Re: Can't receive calls in 4G

alkemyst — Tue, 27 Aug 2019 06:12:58 GMT

I tried to boot in safe mode and it still cannot receive calls while on 4G.

Since the data connection and the call placing work fine, I hardly beleive it's a hardware problem.

My network it Sunrise (CH).

My model is G8441

Build number: 47.2.A.10..107

What should I do? (besides locking on 3G as a workaround)

Re: Can't receive calls in 4G

Jonas — Tue, 03 Sep 2019 12:13:13 GMT

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.

Re: Can't receive calls in 4G

Checho1 — Wed, 06 Nov 2019 15:19:44 GMT

~~No puedo llamar ni recibir llamadas~~

I can't call or receive calls

Re: Can't receive calls in 4G

Jonas — Fri, 08 Nov 2019 09:49:32 GMT

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