IMS technology testing

This thesis is about the IMS technology, which is a standard defining the architecture for providing multimedia services. The theoretical part is a general description of the technology, architecture, a brief description of segments and used protocols. The practical part is a description of the environment of Open IMS Core and testing network designed according to theoretical knowledge. This is essentially a description and analysis of the registration process, voice transmission(it means a call between two users), text relay and video. A laboratory task was created on the basis of obtained knowledge