1. An apparatus, comprising: at least one processor; and at least one memory, wherein the at least one processor and the at least one memory are configured to provide operations comprising: receiving, at a content aggregation server, a session initiation protocol subscribe message from a mobile terminal, wherein the session initiation protocol subscribe message comprises a session initiation protocol event package to subscribe to at least one of a plurality of content network sources included on resource list at a resource list server, wherein the resource list includes at least one of a plurality of session initiation protocol uniform resource identifiers and is configured before the receiving to include at least one of the plurality of content network sources, wherein the resource list is fetched based on the received session initiation protocol subscribe message; sending, by the content aggregation server, the session initiation protocol subscribe message to the at least one of the plurality of content network sources listed in the resource list and addressed by at least one of the plurality of session initiation protocol uniform resource identifiers, wherein the session initiation protocol subscribe message further comprises a registration with the at least one of the plurality of content network sources; fetching, by the content aggregation server, content of the at least one of the plurality of content network sources by sending a session initiation protocol event package subscription to the at least one of the plurality of content network sources; and aggregating, by the content aggregation server, the fetched content into the session initiation protocol notify message sent to the mobile terminal.