Problem of IMS modeling – Solving Approaches
– IMS (IP Multimedia Subsystem) network has high demands from perspective of multimedia, flexible and interactive communications. Fulfillment of those demands, with appropriate levels of quality, is not a simple task. The primary objective of this paper is to set emphasis on the proper dimensioning of IMS network, and the need to find a methodology applicable in planning of IMS networks, that will be able to provide quantitative results on basis of the initial request. In addition, the goal is to provide insight to the basic problems of IMS network, and ways of solving them. This primarily refers to SIP (Session Initiation Protocol) servers, which are the key part of the IMS structure, which have to deal with overload due to improper dimensioning of the network. This paper will attempt to present systematically the existing solutions and to provide guidance for the future resolution of this problem.