Patent ID: 8559408

Claim:
A system for communicating the state of a wireless user device in a wireless domain to an application server in an Internet protocol (IP) domain, the system comprising: a wireless user device configured to operate in a wireless domain, configured to detect a change of its state, and, in response to detecting the change of state, to send a messaging service message to an Internet protocol multimedia subsystem (IMS) gateway node, the messaging service message containing status information indicating a current state of the wireless user device, wherein the messaging service message is one of a short message service (SMS) message or a multimedia messaging service (MMS) message, wherein the gateway node receives the message from the wireless domain in a first format and converts the message from the first format into a second format, wherein the first format is one of a signaling system 7 (SS7) format, a short message peer-to-peer (SMPP) format, a computer interface to message distribution (CIMD) format, a hypertext transport protocol (HTTP) format, a hyper text transport protocol secure (HTTPS) format, and a short message service center (SMSC) format and wherein the second format is one of a session initiation protocol (SIP) format, a session description protocol (SDP) format, and an Internet protocol (IP) format; and an application server configured to operate in the IP domain and for receiving, from the IMS gateway node, the status information indicating a state of the wireless user device and for providing at least one service to the wireless user device based on the current state of the wireless user device.