| 摘要 |
Collecting diagnostic information from a remote device in today's networks is limited to system related information. However, of more interest to vendors of commercial products or services is information related to, for example, how their products, services or advertisement are perceived by end users. Accordingly, a method and corresponding apparatus according to an embodiment of the present invention are provided that extends the Session Initiated Protocol (SIP) NOTIFY mechanism. Originally defined for server to client or downstream notification of a state of a resource or of an event, the present invention extends this functionality to include uploading information other than a state of a resource or of an event from the client to the server or upstream. As such, information, such as usage behavior of a user, may now be collected to understand end user perception of products, services or advertisements.
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