What does the arrow icon in Notification area mean again?

[Guest vradi]

In the notification area (left of battery, sound.. etc..) its like an up arrow or pyramid? What does this notification mean? I can't seem to find anything about it.

[Guest necosino]

Signal Strength. More bars = stronger signal.

[Guest dwallersv]

Roaming?

[Guest blazingwolf]

Roaming?

Correct.

[Guest vradi]

ahh Ok.. TY! I'm an idiot please drive through :D