Mobility

Improving Traffic Performance on IMS Network

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Executive Summary

The IP Multimedia Subsystem (IMS) enables the convergence of voice, data, and multimedia services such as Voice over IP (VoIP), Video over IP, push-to-talk, presence or instant messaging services and so. IMS is well integrated with existing voice and data networks, while adopting many of their key characteristics. SIP (Session Initiation Protocol) provides a pathway to build a single unified network, bridging the gap that previously existed between the once-separated Telecom and Internet networks. The Call Session Control Functions (CSCFs) servers are the key part of the IMS structure. They are the main components responsible for processing and routing signalling messages.

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