topic Re: Wifi Calling in Android

Wifi Calling

Sinkers — Tue, 05 Mar 2019 10:18:44 GMT

Hi,

I am thinking about purchasing a used Galaxy S9 plus.

Having poor reception at home, I need to have wifi calling working.

I had to replace my previous (unlocked from Vodafone) Galaxy S7 Edge and had to get an O2 Galaxy S7 Edge to get wifi calling working.

Have things changed, or will I need an O2 version of the Galaxy S9 Plus to get wifi calling working or would any unlocked S9 Plus work?

Thanks

Re: Wifi Calling

Cleoriff — Tue, 05 Mar 2019 10:26:10 GMT

Hi @Sinkers

To get 4G and WiFi calling your phone should be running O2 firmware. So if you buy from O2 you will be fine.

Info in this link

https://www.o2.co.uk/business/support/network-support/wifi-and-4g-calling#Samsung-set-up

Re: Wifi Calling

Sinkers — Tue, 05 Mar 2019 10:35:14 GMT

Thanks for your quick reply.

I guess my question really is, can I buy a 2nd hand non O2 phone (unlocked) and will that work with wifi calling, or does it need to have the original O2 firmware on it. Indeed can one flash O2 firmware onto a non O2 phone to make it compatible with wifi calling with O2?

Regards

Re: Wifi Calling

Cleoriff — Tue, 05 Mar 2019 10:48:19 GMT

@Sinkers

A second hand non O2 phone won't work with wifi calling.

With regards flashing to get the right firmware, that has been hit and miss from what I've read.

ie it SHOULD work but some people have had issues.

Re: Wifi Calling

Sinkers — Tue, 05 Mar 2019 10:49:10 GMT

Many thanks for that

Re: Wifi Calling

MI5 — Tue, 05 Mar 2019 10:50:15 GMT

@Sinkers wifi calling will work on any S9 regardless of firmware.

Re: Wifi Calling

Cleoriff — Tue, 05 Mar 2019 10:53:09 GMT

@MI5 wrote:
@Sinkers wifi calling will work on any S9 regardless of firmware.

Well if that's the case, that's a mistake on my part. I've read a few posts on here before I answered which claimed it didn't.

Re: Wifi Calling

MI5 — Tue, 05 Mar 2019 10:55:37 GMT

Everything from S8 onward works on any firmware (allegedly).

Re: Wifi Calling

Cleoriff — Tue, 05 Mar 2019 10:55:59 GMT

In fact, in the link I gave it states this

Your device should use O2 firmware if you bought it direct from us in an O2 shop, online or over the phone.

To check if your phone’s running O2 firmware, dial *#1234# and look at the CSC entry. If this line includes ‘TEF’, ‘O2U’ or ‘OTF’ then your device has O2 firmware and you can set up Wifi and 4G Calling.
If the CSC doesn't include one of these codes then Wifi and 4G Calling isn’t supported on your phone right now.

If you need more info contact O2 business customer services.

Re: Wifi Calling

Sinkers — Tue, 05 Mar 2019 10:56:36 GMT

>wifi calling will work on any S9 regardless of firmware.

That is very interesting - and good news. Thanks

Re: Wifi Calling

Cleoriff — Tue, 05 Mar 2019 10:58:48 GMT

@Sinkers

Check my post above yours. Taken from the Wifi Calling website

Re: Wifi Calling

Sinkers — Tue, 05 Mar 2019 11:01:44 GMT

Maybe I should say "hopefully" good news!

Maybe someone on here can confirm, from experience, which version is correct.

Re: Wifi Calling

MI5 — Tue, 05 Mar 2019 11:03:51 GMT

The website is showing old info still.
Trust me

Re: Wifi Calling

Cleoriff — Tue, 05 Mar 2019 11:10:38 GMT

@MI5 wrote:
The website is showing old info still.
Trust me

Yep ..Trust him ^^^^

I don't use WiFi calling so only post on what I know....