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IMS/SIP Overview: Some Video Tutorials

IMS (IP Multimedia Subsystem) is a framework that controls various media transfers using different protocols like SIP. SIP is a signaling protocol that initiates and closes media sessions, while other protocols transfer the actual media content depending on the type of content. The document provides an overview of IMS and its relationship to SIP and VoIP, explaining that IMS sits above these other protocols and frameworks to control multimedia sessions across different networks and devices. It recommends some introductory video tutorials to understand the basic concepts and architecture of IMS.

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VIKAS NIGAM
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92 views3 pages

IMS/SIP Overview: Some Video Tutorials

IMS (IP Multimedia Subsystem) is a framework that controls various media transfers using different protocols like SIP. SIP is a signaling protocol that initiates and closes media sessions, while other protocols transfer the actual media content depending on the type of content. The document provides an overview of IMS and its relationship to SIP and VoIP, explaining that IMS sits above these other protocols and frameworks to control multimedia sessions across different networks and devices. It recommends some introductory video tutorials to understand the basic concepts and architecture of IMS.

Uploaded by

VIKAS NIGAM
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as DOCX, PDF, TXT or read online on Scribd
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IMS/SIP Overview                                                    Home : www.sharetechnote.

com
 
 
 
Followings are the topics to be covered in this page.
 Overview
 Some Video Tutorials
Overview
 
IMS (IP Multimedia Subsystem) is one of the terms that I heard most often since I started studying LTE
of the terms which is still not clear to me -:).
 
This post is to share my understanding as of now (?) with readers and I will try to put information based
on experience rather than directly coming from the specification. There may be some part which may no
accurate from the real expert's point of view. I think I keep updating this page very often and very long
 
 
As usual, the first thing I did to know something about IMS when I first heard of it, I put "IMS" in Googl
may experienced I got a lot of different kind IMS -:). Then I put "LTE IMS" and got pretty much of the r
more relevent to my interest. But I saw from the searched link a lot of material about SIP. Reading thro
I start asking myself.. "Hmm... Is IMS same as SIP ?".
And then I started search "SIP" in Google. Of course, a lot of result about SIP popped up but I also got
amout of the searched result was about "VoIP". Then I asked myself "Hmm... Is SIP as same as VoIP ?"
With the application of transition rule, I thought "Then... Is IMS same as VoIP ?". It took long time for m
this confusion.
 
The latest version of my understanding about the relationship among IMS, SIP, VoIP is as follows ( I thi
be many other arrows in/out of IMS block). As you see, IMS is sitting on top of everything and it contro
various media transfer.
Now let's think about SIP (Session Initiation Protocol). As the name implies, SIP is a kind of signaling pr
mainly involved in "Initiation" and "Closing" of a media transfer. Once a session is initiated, some other
the process to transfer the data part of the media. The specific type of prtocol is determined by the type
 
 
Now let's think about how these IMS chain get involved in LTE SAE structure and I think just one diagra
below is good enough for a big picture. (I will put more details later).
 
 
Now let's get a little bit deeper into some of sub topics which would give you more detailed and practica
For the start, I would describe some topics about SIP first. One reason is that SIP is one of the biggest a
IMS framework and another reason is that I haven't yet found any small IMS test system I can try with.
 
 
Some Video Tutorials
 
First, if you are a real beginner for IMS and SIP. I recommend you to see the following video a couple o
will give you pretty good big pictures.
 
 IMS: How does it work?
 Introduction to IMS (Award Solution)
 IMS Video Tutorial
 Ericsson IMS Overview
 
 
 
 
 

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