Wonder if its really an iOS update, or a carrier bundle update. If its an iOS update why EE and other networks around the world are working. Corporate users are being told not for 12 months.

I find that hard to believe, was that some sort of excuse made by Vodafone to you? It just seems more likely to be a problem at the Vodafone end.

If it wasn't working on numerous other networks it might sound a bit more plausible.

Not sure what's happening with this on Samsung S6 on Vodafone my wife's got it enabled in the phone settings,had the text to say its enabled on the account and has been confirmed by CS yet still not working.

Just typical as her brother works in Vodafone net ops but is away on a cruise so can't fix.

Uno, it's a known issue and is affecting lots of customers at the moment. It should be resolved in the next couple of weeks.

So if it's also affecting Uno's Samsung s6 it would be another indication of Vodafone telling lies as to where the fault lies...

this just about sums Vodafone up

It's definitely a core network problem though I think it's ridiculous they only soon the voice side with how many people text compared to calling.

Maybe they assume everyone is on WhatsApp now which works over data, instead of using legacy SMS. (Or they're hoping everyone will move to RCS, which has no support from iOS or Windows Phone that I've seen).

So I've been using this for the last couple of months and its a bit meh. Me and the other half are using S6 Edge, we generally have ok signal though further boosted by a Sure Signal box. We have made very few calls via Wifi with the signal box on and off.....for some reason Vodafone has made it so the phone will try to connect to the mobile network first, only then reverting to wifi calling when there is no signal or can't make a call.

The trial is due to be wound up in the next few days, I have to say I have been disappointed with it, I genuinely thought wifi calling would offer an improved service. I am puzzled as to why Vodafone went with the choice of only allowing wifi calling as a last resort, if anything being universal and unbiquitous would alleviate congestion on their mobile infrastructure.

I assume on EE it is universal on iOS devices and other compatible phones?

I don't think its anything to shout about to be honest, it seems to be a service very few will be able to use never mind having access it. It warned me on the phone it would impact battery life, which I didn't notice it to be any worse.

Vodafone have implemented it differently to EE. EE uses wifi calling whenever you are connected to wifi regardless of signal strength. Vodafone have a network threshold. I have been using it on an iPhone 6s Plus and I must say I have found it nearly flawless so much so I have removed my sure signal. Voice quality is tremendous. Where the sure signal does not do hd voice, wifi calling does.

That's a strange way to implement it, so the phone keeps hopping between a weak signal and wifi calling all the time?

EE is far more polished, if I connect to a wifi network then the phone goes to WifiCalling, it even does it in my local Tesco. It will then stay connected until the wifi network is no longer available.

Typical Vodafone to balls it up like that.

EE had one hell of a job getting it working reliably as we know.
I wonder if Vodafone gave up and decided to prioritise cellular just in case or something.
EE's is flawless though. It doesn't like weak WiFi but other than that...
What amazes me is the speed at which it connects to WC. It's literally seconds from getting WiFi.
I can't wait for VoLTE and 800 to see how well this WC to 4G (but more impressively 4G to WC) handover works.
Or not... or another 6 month wait..... as the case may be!!


EDIT: Now I have 4G (did I mention that?) I am going to build a proper full coverage second WiFi network indoors off the EE4G router so I can have my iPhone/iPad on that all the time.
Then I can do WiFi calling on that and the kids can use the Plusnet ADSL for Netflix.
Sorted!

Now you say that and I always connected using HD voice, the call quality was noticeably clearer, however its sharpness irritates me tbh. I live at two locations which historically had poor signal hence the signal box. I have two variants of the box as well, one the square looking thing and a powerline like model, both have always connected me to HD calling. Now I can get away without using sure signal and call quality is very good.

Its just the network threshold they need to drop, admittedly Wifi callng is easier to setup on iOS devices versus that of Android. Sooner or later they are going to have to make it universal for everyone, it will actually save them model in the long run.

BIB I agree! It would actually be better in the short term if they enabled it like EE does. It means they could for some customers at least mitigate the slow upgrading of the network, especially in rural and sub urban areas. I say all this mind you, it is a better implementation that Three and their silly app.

I don't think it would be a game changer, I just think its a useful addon to improve service offering and coverage.

Downside there is using 4G data allowance for voice calls that may be inclusive (unlimited?) over 3G.

I find EE WiFi calling to be a blessing and a curse. I only turn it on when I'm in an area with no signal but wifi, as there are odd downsides. People on non BT landlines, such as TalkTalk, often think I'm an international caller (with no CLID) and some public WiFi hotspots are so congested you get very poor voice quality. This is where the 3G with HD voice can easily win.

So I can see why Vodafone have set it to automatically use the 'better' technology - using WiFi to fill in where the cellular signal vanishes. A nice easy to find toggle switch on both Android and iPhone would be useful - not the current design of a few levels deep as you hardly need to switch it.

On the first point, I make a few calls but not so many that I'm going to dent the 15GB allowance. Now I have 4G it's probably going up to 30 or 50GB anyway (for the business).
I agree with you on the other points.
It's certainly not perfect and I have had a few comments as to the international number.
I thought EE were working on a fix for this.
Most of the WiFi I go on is home WiFi so yes, I can see there would be a problem with congested public networks.
Went to Exeter Airport a while ago and EE's cellular there was appalling I have to say. In an international airport!!??
The "free" WiFi was totally congested (about half a meg up and down) but I did make a call that at least stayed connected. It wasn't great though, I agree.
Maybe EE will adjust configurations once 800 is fully rolled out.

Does anyone know why Vodafone still isn't supporting this on the iPhone 6/Plus? Is there actually any difference between the way a 6s can use Wifi Calling and a 6? I could understand right after the 6s launch this would limit the number of users if capacities an issue, but given the rate at which Apple sells iPhones you'd think they must be getting pretty busy now just with users on the 6s.

Considering EE support the 5c/5s as well as the 6/6s it would appear to just be Vodafone sticking up 2 fingers at customers with a 6...