What does a triangle mean? (connection) [answered]

That's strange, considering I turned roaming off. Does it mean that I was on a roaming network but not actually roaming?

You can not be on roaming network "but not actually roaming". If you are connected to network different than your home operator - you are roaming.

@Vinyl - (Don't forget there's a difference between mobile network roaming (phone calls, SMS), and mobile data roaming.
Yes, mobile operators often have a higher/different rate even for phone calls, but they're nowhere near the sometimes (read: often) horrendous rates mobile operators consider fine for data roaming.)

Where can you turn off roaming? I think you can't. You are talking about not allowing data while on roaming no?

@Sthocs:

Settings → System → Mobile network

• Under "Mobile data", you have "Data roaming".
  Choose "Do not allow", to not have your Jolla sync (or anything that uses mobile data) when not connected to your operator's mobile network (for example when you're in another country).

• Under "Network" is the telephone part (phone calls , SMS) of your operator's network, so (the default) "Select network automatically" is probably fine as it is. (If it's not, you can select your operator only.)

If it's really important that your phone uses neither data nor telephone services, use "Flight mode" (Settings → System → Flight mode → check "Flight mode").