"This Recommendation identifies the IMT-2000 Family Member@ ""GSM-evolved UMTS Core Network"". This release of the Family Member is known to the Standards Development Organizations (i.e.@ ARIB@ CCSA@ ETSI@ ATIS@ TTA@ TTC) as the ""3GPP Release 8"". The core network interfaces identified in this Recommendation and the radio interfaces and radio access interfaces which are identified in [ITU-R M.1457-8] constitute a complete system specification for the 3rd generation mobile system for terrestrial usage of this IMT-2000 Family Member. It is the intent of the ITU-T that the references in this Recommendation are only to specifications that specify the network aspects of this IMT-2000 Family Member. In the event that a referenced specification also includes material that specifies any of the radio aspects of this IMT-2000 family member@ [ITU-R M.1457-8] shall take precedence. NOTE ?C The structure and content of this Recommendation have been organized for ease of use by those familiar with the original source material; as such@ the usual style of ITU-T Recommendations has not been applied."