Local Number Porting
Isdn, Pstn, Local Number Porting
Local Number Porting is the process by which your landline phone numbers are moved across to another carrier. This is different to rebilling where the encumbet carrier provides the dial tone but the rebiller actually provides the bill.
Under this arrangement it can be difficult to report faults. The encumbent won't talk to you so you have to contact the rebiller to contact the encumbent which can add delays to the restoration and usually there is no restoration Service Level Agreement.
, Local Number Porting