4 hours ago
3 hours ago - last edited 2 hours ago
Is your phone unlocked for use on any network?
Did you successfully activate your SIM?
Did you buy a membership plan in order to be able to use outgoing services?
Did you configure your APN settings correctly in order for mobile data to work?
What happens when you try to make a call?
Any error messages?
Can you receive calls?
Can you send/receive texts?
If you continue to have issues then post back with more detailed information about what happens etc.
If you need to contact 48 support then see the links in my signature below.