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VoLTE on arnitary device

evantkh
Level 6: Acolyte
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Is O2 allowing turning on VoLTE in account even if the device is not listed on O2's device as eligible?

Does O2 intentionally prevent use of other VoLTE devices currently? Or has anyone made it working on other devices such as those Android devices not purchased in the UK?
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MI5
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Only works on iPhone 7, 7+ and Galaxy S7 and S7 edge with O2 branded firmware.
I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.

Currently using:
Pixel 7a (O2 & Lyca), One Plus 6 (Sfr), iPhone 12 Pro Max (Vodafone)

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MI5
Level 94: Supreme
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Only works on iPhone 7, 7+ and Galaxy S7 and S7 edge with O2 branded firmware.
I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.

Currently using:
Pixel 7a (O2 & Lyca), One Plus 6 (Sfr), iPhone 12 Pro Max (Vodafone)
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evantkh
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@MI5

Interestingly "My O2" lets me turn on VoLTE on the account with my Chinese Huawei Mate 8, but Huawei has not push an update to make the VoLTE button appear on the settings.
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evantkh
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Previously that button is hidden.
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MI5
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Everyone can see the button now but it won't work unless you have a supported device.
I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.

Currently using:
Pixel 7a (O2 & Lyca), One Plus 6 (Sfr), iPhone 12 Pro Max (Vodafone)
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PhoneChanger
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MyO2 will allow anyone to enable VoLTE and Wifi calling regardless of whether or not you are using a supported device. At the moment it is limited to iPhone 7 / 7+, and the Samsung Galaxy S7 / S7 Edge and I believe the S8 variants providing you are using O2 firmware.

Non O2 firmware handsets are not supported at this time
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evantkh
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I actually want to know whether O2's network allows only approved devices on its VoLTE network similar to an IMEI whitelist system. VoLTE has a global standard specified and if an arbitary device is able to talk to O2's server will it get blocked intentionally by User Agent or some other means?

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MI5
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The control is in the o2 firmware as stated.
Non o2 firmware will not work, period.
I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.

Currently using:
Pixel 7a (O2 & Lyca), One Plus 6 (Sfr), iPhone 12 Pro Max (Vodafone)
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evantkh
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@MI5

O2 firmware is something client side.

Maybe I take an example. I can talk to you using English but you may or may not respond.

Unsupported means you cannot ask O2 for help when something is not working, rather than talking about whether it will work or not. For example when you reverse engineer an O2 firmware and copy the code to a customized device with bespoken firmware.
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MI5
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Of course you can port certain aspects of one ROM into another if you have the knowledge and ability but that won't be the answer for 99% of users.
I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.

Currently using:
Pixel 7a (O2 & Lyca), One Plus 6 (Sfr), iPhone 12 Pro Max (Vodafone)
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