Patent ID: 6961330

Claim:
A communication system, comprising: a protocol converting controller that receives a first upstream mobile terminal message having a mobile terminal communication protocol and converts the first upstream mobile terminal message into a first upstream Internet message having an Internet protocol, wherein the protocol converting controller receives the first upstream mobile terminal message, selects a first upstream Internet address corresponding to the first upstream mobile terminal message, and generates the first upstream Internet message based on the first upstream Internet address, wherein the first upstream Internet message is supplied to an Internet application, wherein the protocol converting controller determines if the first upstream mobile terminal message is part of an existing session with the Internet application, wherein, when the first upstream mobile terminal message is part of the existing session, the protocol converting controller selects a first selected Internet address as the first upstream Internet address, and wherein, when the first upstream mobile terminal message is not part of the existing session, the protocol converting controller selects a second selected Internet address as the first upstream Internet address.