A mobile telecommunications network includes: a core network (2020) having content processing means (2055) operable to provide a core network service relating to content, and a radio access network (700, 2003) having radio means for wireless communication with a terminal (10) registered with the telecommunications network, wherein the radio access network (700, 2003) includes a local source of content (1100), wherein the telecommunications network is arranged to provide the content processing means (2055) core network service in relation to the content of the local source (1100), and wherein synchronization means is provided to synchronize the provision of core network service in relation to the content of the local source (1100) with communications with the terminal (10).