Patent ID: 7197334

Claim:
A system providing prepaid service to a mobile station of a first network of a multi-network system, the multi-network system having at least the first network operating according to a first protocol and a second wireless network operating according to a second protocol, the system comprising: a prepaid service module for supporting prepaid service to a mobile user, wherein request for prepaid service from the mobile user is directed to the prepaid service module via the second wireless network; the prepaid service module is in communication with the second wireless network and in communication with the first wireless network via the second wireless network, wherein a request for prepaid service from the mobile user is directed to a signaling control point (SCP) associated with the second wireless network and wherein the prepaid service module is adapted to communicates with the SCP for communicating a prepaid status of the mobile user therewith; and the prepaid service module further adapted to communicate whether the mobile user is authorized for call routing to a switch controller associated with the second wireless network via the SCP, wherein the switch controller controls connection routing for communications associated with mobile user of the first wireless network which have been authorized by the prepaid service module.