I have switched off Roaming option all the way, so where was these roaming coming from? It's not right for me to pay for 12 CHF for the "Roaming" I have never made.
Tried to contact Salt support and they explained it could be a bug in Iphone but I still need to pay for this bug. Funny thing is I am using an Android and it has never happened to me like that before.
Turning off mobile data is kind of redundant and often I forgot to switch it on when back to Switzerland.
It has never happened to be before when I was with Orange. If that is the way how Salt operates, I will have to switch off both whenever I traveled abroad.
You will remember to turn it back on when you come back and your data isn't working and you can't get online.
do you roaming disabled permanently?
Yes, it was disabled all the time. The roaming was charged in Rome and Napoli.
3 times, each time was exactly 30KB. You know you cannot do anything with 30KB.
Translation please?
You may ask Salt to block mobile-data (on Roaming) at their side. So even if you have everything on (Roaming, Mobile-Data, Mobile-Data on Roaming) on your side, you won't get any connection beside phone calls since Salt blocked it on their side. Also possible on Swisscom. Not sure if also on Sunrise.
So if it happens again it's fully their fault and they can't blame it on you/your phone. And you will still have Roaming on in case you need to make calls.
I'm on Swisscom and they have a clever scheme (well, I think it's clever) in that I can leave data roaming on, visual voicemail will work, and I can always access my Swisscom account's web page free of charge. That will tell me how much it would cost to add a data roaming package and, if I buy one, how much I've used and how much I have left. I've never been charged for any roaming unless I buy a data package (and the voicemail thing is free even if I've bought a package - it won't take data away) and it sends an SMS at preset intervals as I use it up.
For a lot of people "iPhone" is synonymous with "smartphone", so it doesn't surprise me.
- users will be more satisfied
- users may decide to pay for one of the roaming packages.
The roaming service (and subsequent settlement) is insanely complicated, and essentially there are plenty of errors happening all the time. When you are roaming, and you try to access data, the packets go via visiting network's SGSN server to home network GGSN server. All the data attempts are recorded, and they produce tiny little records called CDR (Call Detail Record) or TDR (Transaction Data Record).
So, if you are in Italy, Vodafone Italy's server records that you attempt to do the roaming (and how much). Your home network completes the transaction (or not). But there is record on Vodafone.Italy that you have used some data. Then Vodafone.Italy sends a bill to Salt: "here is your user that used 30kb of data on my network, please pay". (along with millions of other transactions). The settlement should understand that those were zero-cost-transactions, but sometimes they don't work perfectly.
Investigating it is extremely costly, that is why you may get 50 fr voucher instead.
Secondly how effective these data roaming options are depends on how they are implemented. For example turning data roaming off may only affect user space (the bit that you do with the phone), but leave the system or kernel space still free to do what it wants as it might not invoke the part of the code that determines data roaming.
Smartphones are far more of a computer than they are phone, and therefore they have bugs. Which means to say that there's no 100% guarantee that whatever option you've switched on will actually function exactly as you think it should.
In short, as Porsch has said, really the only way to ensure you aren't using data when abroad is to turn of mobile data entirely as this should kill data for all parts of the system - no absolute guarantees though.