Patent ID: 8041335

Claim:
In a communication system comprising (i) a first network comprising a licensed wireless radio access network and a core network and (ii) a second network comprising a plurality of user hosted access points for establishing service regions of the second network using short range licensed wireless frequencies and a network controller for communicatively coupling user equipment operating in the service regions to the core network, a method of enabling emergency calling at a particular access point for a particular user equipment that is not authorized for services of the second network at a service region associated with the particular access point, the method comprising: at the particular access point, receiving a service request message from the user equipment indicating an establishment cause of emergency call; sending a registration request message to the network controller, wherein said registration request message comprises an identity of the particular user equipment and an indicator to indicate that said unauthorized particular user equipment requests emergency calling; and after registering said particular user equipment with the network controller, sending a message for routing by the network controller to the core network, said message comprising location information for the core network to identify a location from which the emergency call originates.