July, 2005
It is of public knowledge that ITU (International Telecommunication Union) established the radio terrestrial interface UMTS (Universal Mobile Telecommunication Services) as a third generation standard (3G) which fulfills with IMT-2000 specifications (International Mobile Communications 2000) for cellular mobile telephony services. UMTS is the evolution of the current second generation (2G) GSM, which up to date is the most used standard in the world to provide personal mobile telephony, services (PCS).