Patent ID: 8644822

Claim:
A method, comprising: receiving, by an application server, a request message from a mobile station, wherein the request message requests a particular type of communication service, wherein the application server receives the request message via a serving call session control function (S-CSCF), and wherein the application server is configured to control services provided to mobile stations via a plurality of radio access networks; receiving, by the application server, a service profile for the mobile station from a home subscriber server (HSS); identifying, by the application server, a particular radio access network in the plurality of radio access networks as currently serving the mobile station; determining, by the application server, a responsive message based on the service profile and the particular radio access network, wherein determining the responsive message comprises determining whether the particular type of communication service is available for the particular radio access network according to the service profile; and sending, by the application server, the responsive message to the S-CSCF.