My phone says emergency calls

Call your provider and request they reset it.
They need to register your IMEI number found usually under the battery of your phone.
This number is unique like a finger print and the cell will not register to a provider if it's not in their database.
Here's som info on it if you care to read a bit.

http://www.gsmworld.com/using/security/index.shtml

Hope that helps.
Stacey
PC REPAIR
www.wvpcrepair.com