A mobile telecommunications network including: a core network having content processing means operable to provide a core network service, including lawful interception and/or charging, on content, and a radio access network (700, 2003) having radio means for wireless communication with a terminal registered with the telecommunications network, wherein the radio access network (700, 2003) includes a local source of content, characterised by: means operable to provide the content processing means with a copy of the content of the local source to provide the content processing means service thereon, wherein the radio access network (700, 2003) is operable to copy a request for content, that is used by the terminal to request content from the local source, and to forward this to the core network for use in obtaining the copy of the content of the local source, wherein the copy of the content is obtained from a primary content source from where the content of the local source may have also been obtained, and by: a content buffer between the primary content source and the content processing means, and synchronisation means provided to synchronise the provision of the core network service on the copy of the content of the local source with communications with the terminal and operable to withhold providing the service on the copy of the content until receipt of the local content from the radio access network (700, 2003) has been acknowledged by the terminal. a core network having content processing means operable to provide a core network service, including lawful interception and/or charging, on content, and a radio access network (700, 2003) having radio means for wireless communication with a terminal registered with the telecommunications network, wherein the radio access network (700, 2003) includes a local source of content, characterised by: means operable to provide the content processing means with a copy of the content of the local source to provide the content processing means service thereon, wherein the radio access network (700, 2003) is operable to copy a request for content, that is used by the terminal to request content from the local source, and to forward this to the core network for use in obtaining the copy of the content of the local source, wherein the copy of the content is obtained from a primary content source from where the content of the local source may have also been obtained, and by: a content buffer between the primary content source and the content processing means, and synchronisation means provided to synchronise the provision of the core network service on the copy of the content of the local source with communications with the terminal and operable to withhold providing the service on the copy of the content until receipt of the local content from the radio access network (700, 2003) has been acknowledged by the terminal. means operable to provide the content processing means with a copy of the content of the local source to provide the content processing means service thereon, wherein the radio access network (700, 2003) is operable to copy a request for content, that is used by the terminal to request content from the local source, and to forward this to the core network for use in obtaining the copy of the content of the local source, wherein the copy of the content is obtained from a primary content source from where the content of the local source may have also been obtained, and a content buffer between the primary content source and the content processing means, and synchronisation means provided to synchronise the provision of the core network service on the copy of the content of the local source with communications with the terminal and operable to withhold providing the service on the copy of the content until receipt of the local content from the radio access network (700, 2003) has been acknowledged by the terminal.