Edition 3.0 - Feb/2005 ©2006, SIPKnowledge 1 of 1

3G IMS Illustrated (2nd Level)

Marketing Aspects

References/Quiz

3G Pkt Domain Basics

Contents

3G IMS operation

From Ckt/Pkt To IMS

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3G IMS Architecture

Introduction

Better Communication

Take-a-breakAbbrev.IMS

Let's check your comprehension...

We said that the P-CSCF is the entry point to IMS when coming from the access network, while the I-CSCF is the entry point to IMS when coming from other core networks.

Say you are an operator (aka IMS service Provider) and you have one box hosting your P-CSCF component and another box hosting your I-CSCF component. How do you make sure other networks reach your I-CSCF box while endpoints (or either SBCs) reach your P-CSCF box (hint: config…)?

You can get our answer via email at contact@sipknowledge.com. Our turn around time is one business day.

3G IMS Architecture