
28-03-2013, 02:14
You don't need to enter any codes at a border.
If the phone is set to automatic roaming, then it will automatically connect to any network with which its provider has a roaming agreement. For main networks and most global roaming SIMs, this means most networks in most countries.
Some SIMs will have a preferred network in each country, but that usually doesn't preclude connecting to others, so typically in western Europe this means in a place with 4 networks you're most likely to be able to connect to all 4, but occasionally it will be only 3. If you're near certain borders you may see 6 to 10 networks.
As I say, that goes for most global SIMs too, so automatic roaming is likely to slightly improve your experience - if you are in a place where one network is poor, the phone will switch after a while.
However the Toggle product I mentioned adds a local identity, so if that is selected to its home network per country that will be the only one (unless you switch back to the roaming ID in which case you'd again have a selection of roaming partners).
The data is possibly going to cause you a problem, if you need that much, as there simply are not any bulk roaming data deals at modest prices. For example T-mobile UK has a range of monthly add-ons including 50 MB for £10 for a phone and the top one for dongle use is 200 MB for £35. The nearest you might get to the 1 GB you mentioned is some have a daily flat charge of €2 to €6 a day for daily amounts like 25 to 100 MB, with Europasim at the top end of that range. If you really need that much data you might try that, or I still think you might find it better to pick up a local data SIM in each place, with perhaps 500 MB for €5 to €10
But are you sure you need 1 GB? On my phone a check for emails (headers only) uses about 60 kB. If it's gmail in the Opera Mini browser with images off it's quite a bit less than that, 12 or 15 kB if there aren't any new ones.
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