You might need an network unlocking to be done.
NETWORK
UNLOCK CODE:
You can unlock it by flashing your mobile if
your mobile is a CDMA mobile...
The procedure for flashing your
mobile is in the link below
http://hubpages.com/hub/How-to-Flash-your-cell-phone
It has an video explanation.
If your mobile is not an CDMA
mobile , you can get the network unlock code(
NUC) by just
contacting the current network provider customer caredepartment.It is
free of cost.
Therestrictioncodecan be got from your old service
provider..This restriction code iskeptto prevent someone who stole
themobile from using it withanotherprovider...
They will have a
security check done with your date of birth etc..to verify whether you
are the exact owner of the phone..
After that they will provide
you the restriction code to unlock it and use it with another service
provider..
It is all free of cost donot pay anyone for this
seeing some advertisement over internet . That is all fake ads.
The
above proceudre works and you can verify that by seeing the rating of
an happy customer here..
http://www.fixya.com/support/t4035818-need_unlock_nokia5130c_2_use