Patent ID: 8165576

Claim:
A wireless communication gateway for a Session Initiation Protocol (SIP) enterprise system, the wireless communication gateway comprising: at least one processor; and a memory operatively coupled to the processor, the memory storing instructions that when executed by the processor provide an intelligent server agent having: an input/output adapter for communicating with an intelligent client agent in a mobile device over a cellular network using an HTML-based protocol; a session manager, connected to the input/output adapter, for instantiating a SIP proxy user agent or a back to back user agent (B2BUA) in response to a request for a cellular connection received from the intelligent client agent of the mobile device over the cellular network, the request for the cellular connection being made using the HTML-based protocol, the SIP proxy user agent also for: receiving a call request for the mobile device from a caller using a Session Initiation Protocol, the mobile device operating over the cellular network; transferring the call request to the session manager; translating the call request into an HTML-based protocol call request; transferring the HTML-based protocol call request to the input/output adapter; transferring the call request to the mobile device over the Internet and the cellular network; transmitting, over the Internet and the cellular network, an HTML-based protocol accept call message from the mobile device to the input/output adapter; transferring the HTML-based protocol accept call message to the session manager; translating the HTML protocol accept call message into a SIP accept call message; and transferring the SIP accept call message to the SIP proxy agent.