Light Reading
Answers to frequently asked questions - What it is - Why it's hot - How it works

IMS Guide

Light Reading
LR Mobile Report
Light Reading
3/24/2005
50%
50%

IMS is a label that has started springing up all over the telecom industry, whether on individual products, or as vendor systems platforms or interoperability programs. It’s the acronym for IP Multimedia Subsystem, and it is very, very important – a big vision of the future of telecommunications hangs on it. It’s also very, very complicated and pretty abstract.

This tutorial aims to resolve some of that unfortunate conjunction by providing a quick and easy guide to some questions that are frequently asked about IMS. In the report's initial form, answers to a number of basic questions are given, one per page. But the idea is that readers can ask further questions on the message board attached to this article. If you want to send a private message, please email us, and include "IMS Guide" in the subject field. Frequently posed questions will be answered by adding pages to this report.

For a basic understanding of IMS, here are the key starting points:

  • IMS started as a technology for 3G mobile networks (under the auspices of the 3rd Generation Partnership Project (3GPP)), but it is now spreading to next-generation wireline networks and is going to be a key to fixed/mobile convergence. It builds on the Session Initiation Protocol (SIP), which has emerged as the crucial technology for controlling communications in IP-based next-generation networks (NGNs).

  • IMS is about services and applications, enabling telcos, mobile operators, and other service providers to offer rich multimedia services across both next-generation packet-switched and (within obvious limits) traditional circuit-switched networks. It is standards-based and uses open interfaces and functional components that can be assembled flexibly into hardware and software systems to support real-time interactive services and applications.

  • IMS will have a major impact on the telecom industry – including telcos, mobile operators, service providers, vendors, and others – because it will lead to new business models and opportunities, and (hopefully) lower costs through standards-based procurement. It simultaneously lets network owners derive added value from their networks, while opening these networks to third parties (including enterprise customers) to develop and offer enhanced and tailored services and applications of their own. The full exploitation of mass-market broadband will depend on it.

  • The basic set of standards for IMS implementation were released in 2004, and the first implementations are in hand or planned. Both the International Telecommunication Union (ITU) and the European Telecommunications Standards Institute (ETSI) are heavily involved, and IMS standards are still developing to fill in the inevitable gaps and to add new capabilities. However, IMS is still untested in real-life major carrier networks, and its widescale implementation is some years away.


Support for IMS even at this early stage in its development seems to be fairly hard-nosed, if the results of a poll taken during the Light Reading Webinar on which some of this report is based – IMS: A Blueprint for Fixed-Mobile Convergence – are typical:

  • Just over 40% of respondents thought that the most important catalyst for IMS deployment was the service providers’ need to create a more flexible environment for the deployment of applications.
  • 18% thought it was service providers’ need to create a converged fixed and mobile network.
  • 17% thought it was service providers’ need to deploy blended or combinational multimedia applications.
In other words, a large majority in favor of pragmatic flexibility, rather than any fancy and/or more futuristic possibilities.

Here's a hyperlinked list of the questions and answers in this report:

This report is based partly on material drawn from various Light Reading resources, including:

Archived Webinar on IMS:

Paid research reports on IMS:

Light Reading news analysis on IMS:


To learn more about IMS, check out the coming Light Reading Live! conference:

IMS: Blueprint for Fixed-Mobile Convergence
at The Sheraton Hotel (Buckhead) in Atlanta, on Wednesday, March 30, 2005


  • For more information, click here.
  • To register, click here.


— Tim Hills is a freelance telecommunications writer and journalist

(0)  | 
Comment  | 
Print  | 
Page 1 / 10 Next >
Newest First  |  Oldest First  |  Threaded View
More Blogs from LR Mobile Report
RootMetrics helps us track the fastest and slowest wireless cities in the US and gives a snapshot of carrier performance peaks and troughs in 2012
Light Reading Mobile compiles a list of public access small-cell products to track this developing wireless infrastructure market
A preview of the news, the trends and the potential traffic nightmare that awaits you in Barcelona
Light Reading Mobile lists all the places where you can subscribe to an LTE service and how much it costs
Light Reading Mobile lists all the places where you can get your hands on a dongle and subscribe to an LTE service
Flash Poll
From The Founder
It's clear to me that the communications industry is divided into two types of people, and only one is living in the real world.
LRTV Huawei Video Resource Center
2014 Huawei Electric Power Industry Summit: Interview With CEO of SwitchCom

10|30|14   |   4:13   |   (0) comments


SwitchCom, an IT company based in Angola, recommends a variety of Huawei solutions and hardware to their customers in the energy industry.
LRTV Huawei Video Resource Center
2014 Huawei Electric Power Industry Summit: Interview With Ethiopia's Ministry of Water Irrigation & Energy

10|30|14   |   4:08   |   (0) comments


Gosaye Mengistie of Ethiopia's Ministry of Water Irrigation & Energy discusses the collaboration with Huawei in that country.
LRTV Huawei Video Resource Center
2014 Huawei Electric Power Industry Summit: Interview with Dongfang Electronics Corporation

10|30|14   |   5:46   |   (0) comments


Dongfang Electronics Corporation, headquartered in Chengdu, China, is one of China's largest manufacturers of power generators and contractors of power station projects.
LRTV Huawei Video Resource Center
2014 Huawei Electric Power Industry Summit: Interview with Zimbabwe's Customers

10|30|14   |   3:31   |   (0) comments


Representatives of Zimbabwe's Ministry of Power and Development discuss the energy needs of their country as well as new areas of improvement due to enhanced ICT capabilities.
LRTV Huawei Video Resource Center
2014 Huawei Electric Power Industry Summit: Interview With Colbún Chile

10|30|14   |   4:29   |   (0) comments


In Chile, an aging energy infrastructure was in dire need of a modern update. Claudio Valenzuela of Colbún discusses how Huawei's ICT solutions continue to provide crucial information to improve the grid and how an in-country engineer is a cricial asset.
LRTV Huawei Video Resource Center
2014 Huawei Electric Power Industry Summit: Interview With YuLiao

10|30|14   |   6:27   |   (0) comments


Yu Liao, chairman of the Chinese Association for Renewable Energy in Germany, discusses the role that ICT solutions play in helping to grow renewable energy resources in Germany.
LRTV Huawei Video Resource Center
2014 Huawei Electric Power Industry Summit: Interview

10|30|14   |   2:54   |   (0) comments


Sifang has been working with Huawei on several projects. JingTao Wu, Assistant President of Beijing Sifang Automation Co. Ltd., believes that the cooperation with Huawei can facilitate Sifang's process of internationalization.
LRTV Huawei Video Resource Center
A Better Connected Smart Grid: Powering Laos

10|30|14   |   5:38   |   (0) comments


Representatives of Electricite Du Laos (EDL), a state-owned corporation, discuss the importance of ICT solutions in serving their country's energy needs.
LRTV Huawei Video Resource Center
2014 Huawei Electric Power Industry Summit: Interview With Junwei Lu

10|30|14   |   4:50   |   (0) comments


Professor Junwei Lu of Griffith University Australia describes his work with micro grid technology and the future of the power industry.
LRTV Documentaries
The Next-Gen Network Disconnect

10|29|14   |   01:23   |   (0) comments


There's a lot of talk about making networks more simple with SDN, NFV and next-gen broadband technology – but what about the complexity of introducing such capabilities?
LRTV Custom TV
Grow Your VPN Service Revenue

10|27|14   |   4:00   |   (0) comments


Watch how CSP product managers can better differentiate and maximize the value of their Internet, VPN and cloud services for business services customers, by adding premium application performance visibility to their data services.
LRTV Huawei Video Resource Center
Add SmartSense to Make Your Network Ready for 4K

10|27|14   |   3:23   |   (0) comments


To make current networks ready for the coming 4K TV challenges, Huawei SmartSense solution will conveniently add experience and operation capabilities to boost telcos' future business.
Upcoming Live Events
November 6, 2014, Santa Clara
November 11, 2014, Atlanta, GA
December 2, 2014, New York City
December 3, 2014, New York City
December 9-10, 2014, Reykjavik, Iceland
February 10, 2015, Atlanta, GA
May 6, 2015, McCormick Convention Center, Chicago, IL
May 30, 2015, The Westin Peachtree, Atlanta, GA
June 9-10, 2015, Chicago, IL
Infographics
WhoIsHostingThis.com presents six of the world's most extreme WiFi hotspots, enabling the most epic selfies you can imagine.
Hot Topics
Microsoft's Skype Embraces WebRTC on IE
Sarah Reedy, Senior Editor, 10/27/2014
FTC Slaps AT&T With Throttling Lawsuit
Sarah Reedy, Senior Editor, 10/28/2014
China's MVNOs Hit the Wall
Robert Clark, 10/27/2014
Let's Not Kill SDN & NFV With Silos
Francois Locoh-Donou, Senior VP, Global Products Group, Ciena, 10/28/2014
Eurobites: Will EC's New Broom Sweep Away Regulation?
Paul Rainford, Assistant Editor, Europe, 10/24/2014
Like Us on Facebook
Twitter Feed