I think the key will be with the arrow indicators are on when it does it. We'll have to keep an eye out.

Hi everybody just now did an other try where I live and while streaming on 4G made a call on 3G and then streaming signal changed from 3G to 4G That is a different mast from where I was yesterday. Very exited about Voda changing the way

Haven't seen mine do this tbh, well maybe the odd time but definitely not regularly. But it needs to be resolved as we are paying for 4G and should be getting it whenever it's available regardless of what we're doing on our phones at the time

It's "by design" and I don't think will be resolved.
What will resolve it will be 4G being dense enough for you not to see 3G very much anymore.
So once Vodafone get 800 on the whole network (which i assume is the plan) then finding yourself on 3G should be fairly rare.

Hey Devon, have the rozzers caught up with you yet after your exploits at the orange site, I bet you spray painted EE 4 Eva on the cabinets once the camera was off! 😉
Good collection of videos though, thanks for doing them. 👍
As for this 3g>4g switching mid streaming, I've not managed to get my phone to do it yet on half a dozen sites so far, I wonder if it could be phone specific or as said before just a qwerk due to pauses in data streaming which is something I dont see often as the 900mhz 3g is so congested it never has chance to catch up I my area.
Outside of towns and cities I think we will still see fair bit of 3g on Vodafone even after most masts are done due to the lower power and the quite Conservative level at which it switches from 4g to 3g,
More examples of where much extra 900mhz 3g bandwidth is needed, they've 4g'd a big Hilltop mast on Redhill near Telford, Shropshire it was only 2100mhz 3g and only directed towards the town before but now has 900mhz 3g, the 4g power is extremely low, not even full signal inine of sight but building penetration is still good, while the 4g gets reasonable speeds of 20+ mbps, the 900mhz 3g is swamped, giving 0.2mbps,probably because lots of people, including the whole town of Shifnal now have Vodafone 3g where they didn't only had 2g previously.

Vodafone and O2 carrier settings 24.0 that came with iOS 9.3 now support VoLTE. Under Settings > Mobile Data you can find the option Voice & Data which allows 4G to be selected. Of course, I don't expect it to work until they actually enable it on the network.

Perhaps they'll do like EE and allow some users VoLTE access from now on.

That was in the settings long time ago.

Sorry, thats the same as iOS 9.2, apple has just put this all in a sub menu in 9.3; so potentially allowing other options in the sub menu.

It was not the same for me on iOS 9.2 and carrier settings 23.1. It has definitely changed and voice indicates that VoLTE is supported. Or maybe they just changed the submenus for everyone making it more abstract.

On Vodafone the options in the "Voice and Data" menu are 2G, 3G, 4G

On EE the "voice and data" menu doesn't exist and you get "enable 4g" as the menu with three options when you tap: Off, Voice&Data, Data Only

If you get the option to lock the iPhone to 2G or 3G then this is a data only setting, even with the naming of the menu. I think this is a USA centric screw up (all 4 carries in the US do VoLTE/4G calling now I believe).

Interesting!
When I disable data I still get the option for Voice > 4G

https://onedrive.live.com/redir?resi...nt=photo%2cpng

Apple changes the menu name, but it doesn't affect anything - Vodafone haven't got VoLTE yet.

Yes, I can see why they made the names more abstract. It is Apple after all and they want it to 'just work'.

As I said earlier I don't expect VoLTE to work on Vodafone as they probably haven't enabled it for the public yet. I know they are doing tests as it has been mentioned before by jonmorris who has visited their HQ. They are so slow though...

I'm having a slight issue with O2's 4G (through Tesco Mobile) and wondered if anyone else had encountered it. I live in an area with a strong 4G signal, and most of the time, my phone will connect to it without any issues. However, if I make a long call (longer than about 10 minutes) it will get stuck on H+ and won't return to 4G for hours afterwards, even after putting the phone in and out of flight mode.

It's not a big problem as the speed I get on 3G is pretty good (15-17Mbps usually - much better than it was a couple of years ago), but I just found it a bit peculiar, that's all.

Does sound odd, as if you're getting 3G speeds like that I'd have thought it was an upgraded site that also has 4G.. so you should switch back much quicker.

It sounds like you are being handed over to a non-Beacon (old 3G with decent backhaul) mast during your call. As mentioned before, there are basically two O2 networks at the moment - the legacy sites and the newer upgraded masts. Both have their own BSC and RNCs so don't talk directly to each other for handover purposes. A comparison i've used before os the old Orange 2G back up on Three.
If you have a strong 3G signal on a legacy mast your phone will happily sit on that until it becomes so weak that your phone has to hunt for a new site completely (not handover) so will then see the newer network. Switching to Airplane Mode won't help in most instances as your phone will always look of the last connected cell first and jump back onto that meaning you're back with 3G. I've found going into the Mobile Data setting (iPhone) and then 4G Voice & Data and going 2G 3G 4G will force the phone to look for 4G and it usually jumps on.

You may find that you have a couple of old sites around you as well as a couple of newer upgraded ones which causes this to happen. As more and more sites are upgraded, the newer network grows and the old one shrinks meaning this issue will become less and less apparent.

Hope that helps!

is a better comparison the legacy Orange 3g network that's not quite merged with the (ashes of T-Mobile) EE network in places? People get stuck on the old Orange 3g masts with slow backhaul, in lieu of the faster MBNL EE ones; but again, as the old Orange 3g masts are either shut down or upgraded into MBNL the problem is shrinking.

Interesting - thanks for the explanation. I think there are quite a few masts around here, so it's quite possible that I'm getting my 4G from a different one than my phone occasionally gets stuck on. Will be interesting to see if the behaviour changes in the future. I tried another call today, which was about 7 minutes long, and it switched back to 4G straight after I hung up, so I guess it must have been connecting to the same Beacon mast this time?

I would assume that this is a better comparison - I haven't used the O2 network in great depth, but I do know that, if my phone latches onto an old Orange mast, it can take ages to get back to the MBNL network, if Orange coverage is still good. Trouble is, most Orange masts have copper backhaul at 2Mbps, which will give about 0.2Mbps (if you're lucky!) over 3G.

61mb down, 23 mb up on Tesco Mobile 4g.

Can't moan at that one bit.

Good point - I forgot about that one! Better comparison of basically the same issue.

Are O2 using another LTE band other then Band 20?
I picked it up today from my local cell site

The way O2 sectors work are 800MHz
110, 120, 130 comes from a rooftop so 3 sectors

but today sector 124 and another cell site shows me sector 134 are new sectors but reading this from Cellmapper app only thing got me excited about is O2 now using 2600MHz same as Vodafone https://play.google.com/store/apps/d...net.cellmapper if anyone is willing to upload so can see if anyone eles is getting sector 124 or 134

No o2 have a small slice of 1800 same as EE/3 and Vodafone, it's only 5mhz so they are using that along side their 800mhz

Sounds good but so far i have only picked up 800MHz on Vodafone no 2600MHz until i go into London Central itself