topic Re: VoLTE on XZ Premium in XZ Series

VoLTE on XZ Premium

joe2348 — Thu, 16 Nov 2017 22:05:50 GMT

Does the XZ Premium which is unlocked and compatible with ATT network; able to provide HD Voice connection?

Re: VoLTE on XZ Premium

CameronT — Thu, 16 Nov 2017 23:19:04 GMT

Hi @joe2348, welcome to the community.

To use VoLTE, your device needs operator-customised software and your subscription (incl. SIM card) must support VoLTE for the device model you're using. To inquire if your device, software, subscription and SIM card support VoLTE, contact your mobile network operator.

To enable VoLTE

Make sure your specific Xperia™ device model and network subscription support VoLTE.
Find and tap Settings > Network & Internet > Mobile network > Preferred network type > LTE or 4G (preferred)/3G/GSM.
Drag the slider beside Enable VoLTE to the right. If Enable VoLTE isn't available, contact your network operator.

Check with your network operator and see if the XZ Premium is one of their supported VoLTE devices.

Re: VoLTE on XZ Premium

pribambas — Fri, 17 Nov 2017 05:16:18 GMT

@CameronT

HD Voice doesn't require VoLTE

Re: VoLTE on XZ Premium

Mr_Virtue — Sun, 19 Nov 2017 02:29:37 GMT

Turkiyede Bir Operatör Cihazin Desteklemedigini Soyledi Fakat Simkart ı Volte Destekleyen Bi Telofana Takip Operator u arayip Volteyi Baslattiktan Sonra Simkarti Kendi Telefonuna Geri Takarsan Volte Üst Ekranda Görünüyor

In the Turkic, an operator noticing that the device does not support But Simkart i Volte Supporting Bi Telophone Calling Operator Calling Volt After Simkarti Takes Back to Own Phone Volte Appears on Top Screen

Re: VoLTE on XZ Premium

gregoryopera — Sun, 19 Nov 2017 03:32:58 GMT

@pribambas wrote:
@CameronT
HD Voice doesn't require VoLTE

Correct.

But it still needs to be supported by the network.

For those wondering - "HD voice" - technically called "wideband audio" - is the use of "high-quality speech codecs" (the bit that changes your voice into digital data and back) during telephone calls, and requires "HD voice" compatible mobile devices on either end, as well as support by the networks... If there's not a "HD voice" mobile device on either end and/or one of the networks does not support "HD voice" (assuming you're calling someone on a different network), it goes back to "regular" telephone calls.

Most high-end smartphones and many mid-range smartphones made over the last two-ish years support "HD voice", but network support varies considerably.

"VoLTE" is quite literally the cellular/mobile equivalent of VoIP ("Skype"), and sends telephone calls over the mobile data network, rather than via "traditional" telephone networks. VoLTE natively supports "HD voice", so the networks usually just say "VoLTE", rather than "VoLTE with HD voice" or similar.

VoLTE-compatible mobile devices are still new-ish, almost exclusively consists of high-end mobile devices (for now) and network support is pretty limited, but it's slowly becoming more common, both in mobile devices and networks... In the long-term, all mobile devices and networks will support VoLTE.

Re: VoLTE on XZ Premium

Pryde97 — Sun, 14 Jan 2018 22:33:19 GMT

Any chance that Sony will step up and take responsibility for selling a phone without building firmware that works with US carriers? It's very annoying to always lose calls because VoLTE isn't available. It's not the carrier or the SIM card. I can put my SIM card in my old Z3 and VoLTE works fine. What kind of company can ethically sell a device that doesn't work and blame other companies for their own failure? Fix it! You had a loyal customer base that is fading. These phones aren't cheap.

Re: VoLTE on XZ Premium

Alecmag — Sat, 03 Mar 2018 18:13:29 GMT

Make volte support for Russian operators tele2, mts.

Because all your vaunted phone functions do not support Russian operators.

@Alecmag

Re: VoLTE on XZ Premium

nibin1984 — Tue, 07 Aug 2018 09:08:26 GMT

I am facing same problem in India..

Re: VoLTE on XZ Premium

Sona62 — Tue, 02 Oct 2018 00:04:44 GMT

Me too and it's very frustrating.

Re: VoLTE on XZ Premium

Rajsek — Tue, 11 Feb 2020 08:30:56 GMT

Hi,

Am using Sony Xperia XZ Premium..

where VoLTE, VoWIFI & Video Calling is not working with Airtel Operator, Tamil Nadu...

Can anyone help me pls.........