| 摘要 |
A gateway receives network presence information regarding a mobile station. The network presence information is based, at least in part, on status messages that a network access server, such as a packet data serving node (PDSN), sends, for example, to an accounting server. The network presence information identifies the mobile station, such as by Internet Protocol (IP) address, network access identifier (NAI), and/or mobile directory number (MDN). When the gateway receives a request from a mobile station to access a content server, e.g., an HTTP GET request, the gateway inserts identifying information, such as NAI and/or MDN, into the request to identify the mobile station to the content server.
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