What does it mean to unlock a smartphone?

what does an unlocked smartphone mean? and can i use unlocked phones from samsung ,for instance, to any network in Greece?

Show Accepted Answer

Guest Quick Reply (No URL, BBcode or HTML)

Last post by fwitting
1 hour ago
Last post by yadira.dach
3 hours ago
Last post by ottis95
4 hours ago
Last post by hjast
1 hour ago
Last post by beer.frieda
3 hours ago
Last post by nbreitenberg
1 hour ago
Last post by jessika.corkery
2 hours ago
Last post by pbashirian
3 hours ago