System and method for accessing really simple syndication (RSS) enabled content using session initiation protocol (SIP) signaling

摘要

A system and associated method for subscribing Really Simple Syndication (RSS) enabled content using the Session Initiation Protocol (SIP) are disclosed. An application server intermediates a SIP message and a request for a RSS feed. An end device requests subscription of the RSS feed in a SIP message. The application server processes the SIP message, register the RSS feed, and tracks changes in the RSS feed over the Internet. The application server retrieves a web content linked to the RSS feed responsive to finding changes in the RSS feed. The application server stores update of the web content in a media cache. The end device subscribing the RSS feed fetches the web content from the media cache in later part of the subscription.