Patent ID: 7948937

Claim:
A method of operating a base station subsystem, the method comprising: processing a call initiation request for a call from a mobile station; identifying a call from a mobile station as a packet data call for specific packet-based applications; in response to the identification of the call as a packet data call for specific packet-based applications, generating a setup request message for delivery from a routing agent within the base station subsystem to a call processor within the base station subsystem, the setup request message comprising a call setup request and a radio link setup request; and in response to receiving the request message, initiating setup of the call, the setup initiation comprising transmitting a message to a packet control function operable for allocating packet data resources to establish a packet data session for the call, and contemporaneously with the call setup initiation, allocating radio link related resources to establish a radio link between the mobile station and the base station subsystem for the call.