The RBT Implement And Request Of Network

With the development of society, economy, science and technology, people have increasingly more and more demands for information, and various telecom users' demands for telecom services are getting increasingly complex. Dues to furious completion in the communication world, services will become a more and more role in the future.In this thesis, we will discuss The Ring Back Tone (RBT) service. RBT provides subscribers with personalized ring back tones. It's based on the IN technology. In the first part, we introduce the wireless network development road in china, then, we discuss the RBT system structure and entities.Secondly, we analyze the three methods to implement RBT service in the three different times: IN mode, Calling party MSC-based mode and Called party MSC-based mode.Lastly, we expect the RBT service technology's evolution in the future (the service exhibition layer and core fuction layer will be separate), and discuss the RBT peripheral services, such as: advertisement RBT and so on.