ISBN-13: 9786203975215 / Angielski / Miękka / 72 str.
The telecommunications market in Portugal, and in the world in general, over the last 20 years, has evolved very quickly, both in terms of technology and in terms of supply model. Today customers want solutions: user-oriented, technologically convergent (independent of the terminal, independent of use, independent of the service or technology that they use), without offer components indexed to technologies, or types of use (such as mobile or fixed use), but rather offers related to usage profiles and to the amount of functionalities/services that they make available.The response to this new type of demand/need has its technological answer in the IMS network (IP Multimedia Subsystem).