topic Re: Xperia 1 mark II and xperia 5 mark II don't receive incoming voice call (not VoLTE) on LTE in 1 Series

Xperia 1 mark II does not receive incoming voice call (not VoLTE) on LTE

trubink — Mon, 07 Sep 2020 11:11:25 GMT

If preferred network type includes 4g (4g/3g/2g or 5g/4g/3g/2g) and the phone connected through LTE become unavailable for incoming calls (does not change network type to 3g or 2g to receive incoming voice call). And works if preferred network type set to 3g/2g.
Any suggest, please

Re: Xperia 1 mark II does not receive incoming voice call (not VoLTE) on LTE

CosmicTomato — Mon, 07 Sep 2020 13:03:42 GMT

Try turning airplane mode on and off again, also confirm if the issue is with phone, try a different SIM card.

Re: Xperia 1 mark II does not receive incoming voice call (not VoLTE) on LTE

trubink — Mon, 07 Sep 2020 13:41:42 GMT

airplane mode, reboot, factory reset with companion do't help
sim card works perfectly at the old xperia x compact.
an other operator sim-card works too in subject

Re: Xperia 1 mark II does not receive incoming voice call (not VoLTE) on LTE

CosmicTomato — Mon, 07 Sep 2020 15:43:52 GMT

hmm If another operator SIM works to receive the incoming voice calls in the Xperia 1 II, you could be needing to switch the body of the SIM, with the same number and all.

Re: Xperia 1 mark II does not receive incoming voice call (not VoLTE) on LTE

trubink — Mon, 07 Sep 2020 18:31:39 GMT

Thank you. This operation (new sim with the same number) definitely helps but for a few days 😞

Re: Xperia 1 mark II does not receive incoming voice call (not VoLTE) on LTE

Jess.09 — Wed, 09 Sep 2020 10:41:20 GMT

Did you try to change the preferred network to "Auto" in the network settings?

Re: Xperia 1 mark II does not receive incoming voice call (not VoLTE) on LTE

trubink — Wed, 09 Sep 2020 11:33:02 GMT

of course auto mode (4g/3g/2g or 5g/4g/3g/2g no matter) is on

Re: Xperia 1 mark II does not receive incoming voice call (not VoLTE) on LTE

Jess.09 — Wed, 09 Sep 2020 15:15:51 GMT

So the device doesn't switch automatically to the available network available?

Did you try to contact the operator regarding this matter?

Re: Xperia 1 mark II does not receive incoming voice call (not VoLTE) on LTE

RottenFoxBreath — Wed, 09 Sep 2020 22:02:38 GMT

Who did you buy the phone from, and who is the operator.

For VoIP for o2 for example, you need to have bought the phone from o2, and for it to work, it has to be running their customisation of software for it to work.

If you bought a sim free phone, and put an o2 sim in it, it won't work.

Re: Xperia 1 mark II does not receive incoming voice call (not VoLTE) on LTE

_alexdon_ — Wed, 16 Sep 2020 06:40:28 GMT

@trubink by any chance did you enable wifi calling?

Re: Xperia 1 mark II does not receive incoming voice call (not VoLTE) on LTE

trubink — Wed, 16 Sep 2020 08:07:15 GMT

Russia, Saint-Petersburg. AT-51 version (1 SIM card slot). The problem is observed only with operator Yota (MVNO) which does not provide VoLTE and vowi-fi services.

According to the forum, this problem is observed by two more users with the same operator and phone in the same city.

With other operator SIM card where is no problem and VoLTE and VoWiFi work.

Both SIM cards work perfectly on the old Xperia X compact phone.

Re: Xperia 1 mark II and xperia 5 mark II don't receive incoming voice call (not VoLTE) on LTE

trubink — Fri, 16 Oct 2020 16:43:16 GMT

the same problem with the xperia 5 mark II

Re: Xperia 1 mark II and xperia 5 mark II don't receive incoming voice call (not VoLTE) on LTE

CosmicTomato — Tue, 20 Oct 2020 12:59:46 GMT

Are both devices bought from the Operator with the customized software they integrate to support the feature, or are they bought from Amazon for an example?

Re: Xperia 1 mark II and xperia 5 mark II don't receive incoming voice call (not VoLTE) on LTE

trubink — Tue, 20 Oct 2020 13:27:18 GMT

Both devices are Sim Free and have dought from Sony Store

Re: Xperia 1 mark II and xperia 5 mark II don't receive incoming voice call (not VoLTE) on LTE

CosmicTomato — Tue, 20 Oct 2020 15:44:26 GMT

That's probably why they're not supporting the WiFi calls, you can use any social media messaging app instead, there's a good app named Telegram, I use it because it allows extra security and encryption to my messages and calls over the internet.

Re: Xperia 1 mark II and xperia 5 mark II don't receive incoming voice call (not VoLTE) on LTE

trubink — Tue, 20 Oct 2020 16:19:04 GMT

It's all about cellular voice calling. Bank won't call me through Telegram

Re: Xperia 1 mark II and xperia 5 mark II don't receive incoming voice call (not VoLTE) on LTE

CosmicTomato — Wed, 21 Oct 2020 11:02:26 GMT

Ahem truuu that, I was just saying for entertainment calls with friends and family and all.

Re: Xperia 1 mark II does not receive incoming voice call (not VoLTE) on LTE

ProFfeSsoRr — Thu, 22 Oct 2020 15:39:47 GMT

Xperia 5 Mark II has same problem: when phone in 4G mode no input calls at all.

Re: Xperia 1 mark II does not receive incoming voice call (not VoLTE) on LTE

CosmicTomato — Thu, 22 Oct 2020 16:03:21 GMT

hey there, have you bought your device from the operator? as many people agree it needs to be set from their side to work perfectly.