IMS Layers

Well, after a brief explanation of concepts IMS about IMS Concepts (IP Multimedia Subsystem), now we show how things work. Basically, the IMS architecture is based on 3 layers: Transport, Control and Services.

Transport: This layer is responsible for converging converge all networks (wireless, GSM, GPRS, 3G, fixed telephony, among others) in networks based on IP, because IMS is based on networks that use the TCP / IP protocols.

This layer is intended to disregard the manner of how the data will be transported, no matter which network we're using, but how to use it, as it should be used in a much simpler and more standardized.

Control: Layer responsible for communication between devices and services. She It performs the authentication and controls traffic between the layers of network and services. It can also facilitate communication between services.

As this layer is all based on IP, it is able to combine data, voice and video in a single only one session.

Services: The most important layer because here the focus is on services that are available to users, we do not care how they come to the devices or other network, because it was oblivious to the abstracted by network and control layers. This causes makes that the IMS architecture has have flexibility to implement new services.

This makes the IMS architecture a reality for digital convergence and ready for the availability of services, able to be discovered and reused.