Patent ID: 8391873

Claim:
A mobile station that is configured to facilitate coordination of supplementary services in a centralized fashion, comprising: circuit-switched domain components that are configured to place voice telephone calls in a circuit-switched domain; and Internet Protocol (IP) multimedia subsystem components that are configured to place voice telephone calls in an IP multimedia subsystem domain, the IP multimedia subsystem components comprising: a transport component for facilitating communication with an IP multimedia subsystem core network; and a signaling component that is configured to exchange information with a centralized server on the IP multimedia subsystem core network via the transport component; wherein: at least some of the information that is exchanged with the centralized server is related to supplementary services for the voice telephone calls in the circuit-switched domain as well as the voice telephone calls in the IP multimedia subsystem domain; the information is exchanged with the centralized server via at least one of a packet switched transport protocol, a data burst message protocol, a short message service protocol, a dual tone multi frequency protocol, and a dialed digits suffix protocol; exchanging information with the centralized server comprises sending a signaling message to the centralized server; and the signaling message comprises a service identifier field that identifies a supplementary service to be invoked, data that is specific to the invoked supplementary service, and a field that indicates continuation of dialogue to exchange further data that is specific to the invoked supplementary service, wherein: the transport component implements the dialed digits suffix protocol; communication with the centralized server occurs via the dialed digits suffix protocol; and communication with the centralized server via the dialed digits suffix protocol comprises appending encoded signaling as a suffix to dialed digits during call origination to the centralized server.