account arrowhead-down arrowhead-up mobile-menu search sm-bold-x x-skinny-rounded x-skinny arrowhead-right social-facebook social-googleplus social-instagram social-linkedin social-pinterest social-qzone social-renren social-tencent social-twitter social-vkontakt social-weibo social-youku social-youtube

Please help us improve our website

Take our customer survey to evaluate your visit.

It should only take a few minutes to answer five quick questions. Just click the Launch survey button at the end of your visit to begin.

cancel
Showing results for 
Search instead for 
Did you mean: 
Tips & Tricks

Troubleshoot, find support articles, run tests with the support app directly on your phone.
Read more and discuss the app here.

VoLTE on XZ Premium

SOLVED
Highlighted
One time poster
Message 1 of 9
4,568 Views
Message 1 of 9

VoLTE on XZ Premium

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

1 ACCEPTED SOLUTION

Accepted Solutions
Sony Xperia Support
Message 2 of 9
6,987 Views
Message 2 of 9

Re: VoLTE on XZ Premium

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

  1. Make sure your specific Xperia™ device model and network subscription support VoLTE.
  2. Find and tap Settings > Network & Internet > Mobile network > Preferred network type > LTE or 4G (preferred)/3G/GSM.
  3. 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. 


Official Sony Xperia Support Staff


If you're new to our forums, make sure that you've read our Discussion guidelines.

To get in touch with your local support team, please visit our contact page.

8 REPLIES 8
Sony Xperia Support
Message 2 of 9
6,988 Views
Message 2 of 9

Re: VoLTE on XZ Premium

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

  1. Make sure your specific Xperia™ device model and network subscription support VoLTE.
  2. Find and tap Settings > Network & Internet > Mobile network > Preferred network type > LTE or 4G (preferred)/3G/GSM.
  3. 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. 


Official Sony Xperia Support Staff


If you're new to our forums, make sure that you've read our Discussion guidelines.

To get in touch with your local support team, please visit our contact page.

Pioneer
Message 3 of 9
4,543 Views
Message 3 of 9

Re: VoLTE on XZ Premium

 @CameronT

HD Voice doesn't require VoLTE

One time poster
Message 4 of 9
4,510 Views
Message 4 of 9

Re: VoLTE on XZ Premium

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

 

GT

Pioneer
Message 5 of 9
4,503 Views
Message 5 of 9

Re: VoLTE on XZ Premium


@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.


  • I can't help you if you don't tell me what mobile device you're using & what version of Android it is running, in English (you can use Google Translate - http://translate.google.com).
  • The more information you can give me, the easier I can help you!
  •  Please kudo this post if you think it has been helpful; or mark it as the "solution" if it fixed your problem, so that other users facing the same issue can find the solution!
Regular
Message 6 of 9
4,323 Views
Message 6 of 9

Re: VoLTE on XZ Premium

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. 

One time poster
Message 7 of 9
4,040 Views
Message 7 of 9

Re: VoLTE on XZ Premium

Make volte support for Russian operators tele2, mts.

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

@Alecmag

 

 

Learner
Message 8 of 9
2,595 Views
Message 8 of 9

Re: VoLTE on XZ Premium

I am facing same problem in India..

 

One time poster
Message 9 of 9
1,595 Views
Message 9 of 9

Re: VoLTE on XZ Premium

Me too and it's very frustrating.