ETSI SMG plays a key role at the development of standards for the UMTS Universal Mobile Telecommunications System, a set of standards aimed at the global market. It will be a real Third Generation Global System for Mobile CommunlcaUons adding new features and Introducing relevant technological InnovaUons while evolving from both GSM and ISDN networks. UMTS Is based on the carefully selected market requirements and belongs to the IMT-2000 family. UMTS standardlsaUon Is a market driven process being developed In a close co-operatlon with the UMTS Forum and GSM MoU.