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A method and System of finding out about and downloading Software updates to a terminal, in which the terminal sends a Standardized Subscribe request for Software updates, and a Server responds by Sending an initial notify message back to the Sending terminal only, the initial notify message having content defined by an event package. This System and method utilize an application layer protocol called Session Initiation Protocol, and the event package requires informa tion as to Software name, update Server address, update retrieval protocol, and latest version. The terminal checks if it has the available Software version, and if not then the terminal automatically downloads the update, or the user is given a choice whether to download and obtain the available