Gartner Research

Introduction to IP Multimedia Subsystem Architecture

Published: 07 July 2005

ID: G00129282

Analyst(s): Jouni Forsman , Bhawani Shankar


IP Multimedia Subsystem, or IMS for short, is a new network architecture designed to give telecom operators more flexibility to deliver services. We define its main elements to help them understand vendors' offerings.

Table Of Contents
  • Introduction
  • IMS — A Gartner Definition
    • Session Control Layer
    • Interworking or "Gateway" Layer
    • Application Layer
  • Gartner Dataquest Perspective

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