Roaming White/Black List - Samsung Galaxy S7 Edge Questions and Answers

Hi! I have a problem with roaming, in particular with mobile data roaming.
Is there a way to whitelist or blacklist operators for roaming? I live a the bordes of Italy and France and I would like to avoid my phone to connect to certains french operators, this is because there are commercial partnership between my home operator and some foreign network and I want to use data mobile on certains foreign network but not on some other that are very expensive.
It will be ok to just disable Mobile Data when on certain networks or at worst to deny the roaming.
I am not rooted. I remember that at the time of old GSM mobile there was a preference list regarding roaming network, and now that we have phone that can make almost everything a lot of important feature are missing!
Any suggestion?
Many thanks!

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Confused about GPRS

Can someone help, I'm confused about how GPRS works.
The situation is, I have a XDA on the O2 network. GPRS works fine in the UK.
I recently went to HK, and it didn't work.
Before I went to HK, I phoned the O2 help line and asked them specifically if I need to make any changes, they said 'NO', it should work without any changes similar to GSM international roaming.
By looking around this forum, its seems to me that information given to me is wrong.
Would it be correct to say that if I take my XDA to another country for a short trip, I need to set up the GPRS dial up to connect to whatever GPRS provider that exist in that country?
In other words, GPRS is not seemless like roaming GSM?
With GSM roaming it uses the SS7 network which all netorks connect to.
GPRS roaming never specified the mechanism to carry roaming traffic (as it was IP and not suitable for carrying over SS7).
Consequently there are about 4 public GRX networks that carry GPRS roaming traffic. For seemless GPRS roaming every operator has to connect to all 4.
O2 only has GPRS roaming agreements with a few operators in a few countries. For instance in France there is only a roaming agreement with SFR, so GPRS does work fine, without any changes in config on SFR only. GPRS roaming to O2 will not work on the other two networks.
O2 may have a GPRS roaming agreement with one operator in HK.
Vodafone will ONLY GPRS roam with other Vodafone group companies.
O2 UK do, indeed, have one agreement for GPRS roaming in Hong Kong. They were correct in saying no settings need changing - you are not connecting to the Hong Kong GGSN, after all.
Did you ask that all international roaming bars be lifted and reboot the unit at least 24 hours in advance of leaving the country?

Mobile operator displays as in roaming when in the country

Hi Guys,
I just changed to another mobile phone operator and the HD2 gives me the roaming message with this operator yet I'm still inside the country. I believe its because this operator "uses" another operator's mobile infrastructure to provide their service and the devices thne think its a foreign operator and that you are in roaming as same thing happens with other operators that do the same thing.
The problem is that since I'm always in roaming mode, the push mail wonk work, phone will not update weather, RRS feeds, etc, etc. And if I allow autoamtic connections in the phone when in roaming, when I'm actually really outside the country (frecuently) it will connect and I will be charged for international data connections.
My question is, is there any application that will allow you to force the phone to take a especific roaming operator as national? i.e. to make it believe its not roaming when under that operator in particular? if it confuses that particular operator with a foreing one, to unconfuse it manually with an application?
Thanks in advance.

[Q] Is it possible to force our device to use Roaming?

As stated in the title does anyone know how to? im using the latest version a Aurora if that makes any difference ?
Bump. Anyone please ?
I don't think you can force it, as long as your home network is available or as long as you're in your home country.
Many networks will block the competitor networks on the same country.
If you travel to another country, you should be able to choose a network without problem, but not on the home country.
Even if you hack the phone, the network will recognize your sim card and block it.
Roaming only works when the operators have roaming agreements, which very seldom happens on the same country...
If I set roaming off, network doesn't work. My operator doesn't allow "no roaming"
Sent from my GT-P1000 using Tapatalk 2
peixotorms said:
I don't think you can force it, as long as your home network is available or as long as you're in your home country.
Many networks will block the competitor networks on the same country.
If you travel to another country, you should be able to choose a network without problem, but not on the home country.
Even if you hack the phone, the network will recognize your sim card and block it.
Roaming only works when the operators have roaming agreements, which very seldom happens on the same country...
Click to expand...
Click to collapse
oh i see thank you for that great answer at least now i can make a decision if i need to change network provider

Data roaming doesn't work

Hi all,
I have booked a data package for data roaming but the SGS3 (i9300MBDDBT XXLE8) won't connect. (germany -> france)
Data roaming is enabled of course, but all I get is the warning message, that data roaming has been disabled.
I have found very little information about this problem, only that some SGS2 or HTC Sensation users have been complaining about data roaming not working anymore after updating to ICS (from GB).
Is this an android bug of some sort or is anyone familiar with this problem?
BR
I have contacted my network provider, they had the gprs-roaming locked down for my contract for some reason...
Have you tried entering the network settings that you are roaming on to .
jje
Yeah, I guess the APN is set right to "web.vodafone.de", as it is stated in the service portal of my provider.
Althought I have read, that someone with a different provider had a similar problem and solved it by changing the APN...
I was just wondering, because the system tells me, that data roaming has been disabled, even if I have it enabled.
Try to manually search for some other network in France, maybe the one you are on right now does not offer data roaming (although I think all networks in the EU must offer it).
I can only connect to the "F SFR discoTel" network.
Since my home-network is discoTel (germany/vodafone network)
I guess this is their french partner network...
I have already contacted my provider via their service portal about this matter,
but they are quite slow and I think this problem might be connected to ICS, because all I can find about android not allowing data roaming on google is mentioning ICS.

[Q] National Roaming on Stock Rom on Three Austria

Hi!
I recently switched my mobile provider to Three Austria (Drei) and since their network is not perfect on the countryside they are allowing us to use another provider in there areas (T-Mobile Austria)
But since it is a different provider my Nexus 4 thinks that I am roaming and deactivates the data connection.
Is there another way than activating data roaming for all networks, so something like national roaming on stock rom?
Regards,
tailorian
tailorian said:
Hi!
I recently switched my mobile provider to Three Austria (Drei) and since their network is not perfect on the countryside they are allowing us to use another provider in there areas (T-Mobile Austria)
But since it is a different provider my Nexus 4 thinks that I am roaming and deactivates the data connection.
Is there another way than activating data roaming for all networks, so something like national roaming on stock rom?
Regards,
tailorian
Click to expand...
Click to collapse
I'm on Drei too and I'm using the app "Roaming Control" which works perfectly (there is a trial version too). Seems to be the only solution so far since the "national roaming" option doesn't exist in the stock rom.
DerFremde said:
I'm on Drei too and I'm using the app "Roaming Control" which works perfectly (there is a trial version too). Seems to be the only solution so far since the "national roaming" option doesn't exist in the stock rom.
Click to expand...
Click to collapse
This is very annoying since the function for national roaming is included in CM.
I just wonder why this hasn't been pushed up to the android source code...
i also use 3 in austria.
is roaming control the only way until now?
my problem is that my phone sometimes connects to hungarian networks even if A1 is available.
remote control stops data roaming => this is good
but why did my phone not stay on the local provider?
how can i tell my phone that it should not connect to another operator aslong a national operator is available?

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