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 Custom TV
Using Service Quality to Drive WiFi Monetization

10|22|14   |   6:51   |   (0) comments


Live from the SCTE conference: Heavy Reading's Alan Breznick explores the forces shaping the WiFi opportunity in an interview with CableLabs' Justin Colwell and Amdocs' Ken Roulier.
LRTV Custom TV
Distributed Access Architectures – 2

10|21|14   |   8:51:00 AM   |   (0) comments


ARRIS CTO Network Solutions Tom Cloonan discusses why many if not most MSOs will continue with integrated CCAP, while addressing why some are also looking at two futuristic, distributed access architectures: Remote PHY and Remote CCAP.
LRTV Custom TV
Distributed Access Architectures – 1

10|21|14   |   9:01   |   (0) comments


SCTE Sr. Director of Engineering Dean Stoneback discusses the pros and cons of distributed access architecture (DAA) and its various forms, which range from basic Remote PHY to full CMTS functionality in the node.
LRTV Custom TV
The WiFi Road to Riches – 2

10|21|14   |   3:58   |   (0) comments


ARRIS Senior Solution Architect Eli Baruch talks about how MSOs can enable public and community WiFi through 1) outdoor access points, 2) businesses seeking to offer WiFi to customers, and 3) residential WiFi gateway extensions.
LRTV Custom TV
The WiFi Road to Riches – 1

10|21|14   |   10:15   |   (0) comments


SCTE Director of Advanced Technologies Steve Harris discusses WiFi deployments, drivers, challenges and advances, including 802.11ac, carrier-grade WiFi, community WiFi, Hotspot 2.0, Passpoint, WiFi-First and voice-over-WiFi.
LRTV Custom TV
Advantech Accelerates 100G Traffic Handling

10|17|14   |   7:56   |   (0) comments


Paul Stevens from Advantech explains why handling 100GbE needs a whole new platform design approach and how Advantech is addressing the needs of equipment providers and carriers to give them the flexibility and performance they will need for SDN and NFV deployment.
LRTV Huawei Video Resource Center
Holland's Imtech Traffic & Infra Discusses Huawei's ICT Solution and Services

10|16|14   |   4:49   |   (0) comments


Dimitry Theebe is from the business unit at Imtech Traffic & Infra which delivers communications solutions for transportations. His partnershp with Huawei began about a years ago. In this video, Theebe speaks more about this partnership and what he hopes to accomplish with Huawei.
LRTV Huawei Video Resource Center
Huawei's Comprehensive Storage Solutions Vital for SVR

10|16|14   |   6:16   |   (0) comments


SVR Information Technology provides cloud services for academic and special sectors. With Huawei's support, SVR and Yildiz Technical University has established Turkey's largest and most advanced High Performance Computing system. CSO Ismail Cem Aslan talks about what he hopes Huawei's OceanStor storage system will bring for him.
LRTV Huawei Video Resource Center
Mexico's Servitron's Impression of Huawei at CCW 2014

10|16|14   |   6:35   |   (0) comments


Servitron is a network operator in Mexico that has been in the trunking industry for the past 20 years. Its COO, Ing. Ragnar Trillo O., explains at Critical Communications World 2014 that his company has been interested in the long-term evolution of LTE technology and its adoption for TETRA.
LRTV Huawei Video Resource Center
Building a Better Dubai

10|16|14   |   2:06   |   (0) comments


Abdulla Ahmed Al Falasi is the director of commercial affairs, a telecommunications coordinator for the government of Dubai. Their areas of service span across multiple industries, including police, safety, shopping malls and more. In this video, Abdulla talks about his department's work with Huawei.
LRTV Huawei Video Resource Center
Huawei Lights Up Malaysia Partner Maju Nusa

10|16|14   |   1:59   |   (0) comments


Malaysia's Maju Nusa is an enterprise partner to Huawei in networking, route switches and telco equipment. At this year's Critical Communications World in Singapore, CTO Pushpender Singh talks about what Huawei's eLTE solutions mean to his company and for Malaysia.
LRTV Custom TV
Evolving From HFC to FTTH Networks

10|15|14   |   2:19   |   (0) comments


Cisco's Todd McCrum delves into the future of cable's HFC plant, examining how DOCSIS 3.1 and advanced video compression will extend its life and how the IP video transition will usher in GPON and EPON over FTTH.
Upcoming Live Events
October 29, 2014, New York City
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
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
Google: Carriers & Cloud Providers Need to Cooperate
Mitch Wagner, West Coast Bureau Chief, Light Reading, 10/16/2014
Could Data Be the New 'Currency'?
Ray Le Maistre, Editor-in-chief, 10/16/2014
iPad Air 2 Lets Users Switch Carriers Any Time
Mitch Wagner, West Coast Bureau Chief, Light Reading, 10/17/2014
Analysts Warn of Major NFV Gaps
Carol Wilson, Editor-at-large, 10/22/2014
CBS Takes OTT Plunge
Mari Silbey, Independent Technology Editor, 10/16/2014
Like Us on Facebook
Twitter Feed