1. Market Research
  2. > ICT
  3. > Telecom
  4. > Mobile Services Market Trends
Voice over LTE

Voice over LTE

  • November 2014
  • 30 pages
  • ID: 2478649
  • Format: PDF


Table of Contents

Search Inside

As an all-IP network technology, LTE does not support legacy services such as voice and SMS which have always run in circuit-switched mode with 2G and 3G. VoLTE was chosen in 2010 by the GSMA from several propositions as the official way of supporting voice and SMS on LTE networks but the road towards full implementation and deployment in the network has been a long one. Although most mobile network operators claimed early on that they would adopt the solution, the consensus was rather that waiting for it to mature, and for others to experience it, was the way to go. South Korean operators were the first to deploy the solution, starting in mid-2012 but most Tier 1 operators were more cautious. Verizon, for instance, has repeatedly delayed its launch of VoLTE. This was first expected to happen in 2013, but was then delayed to early 2014 and then further to September 2014. Now, at long last, the market seems to be moving and the year 2014 appears to have become the real starting point for VoLTE to take its place in the network. Since our most recent ‘Insight’ on the subject, NTT DOCOMO launched services in Japan in May 2014, to be followed by T-Mobile, AT&T and Verizon Wireless in the USA. So what has changed in 2014 to drive operators to finally launch their VoLTE services?

The multiple delays and hesitations of the mobile network operators in launching VoLTE are food for thought indeed, raising a raft of questions. What is at stake behind VoLTE? Where are the obstacles to its deployments? Is the device ecosystem ready or is it the infrastructure side that is lagging behind? What has been, what is, the strategy of the operators? These are the questions that we shall answer in this report.

Until now, there were two different solutions for operators in the absence of VoLTE when it came to providing voice and SMS services on an LTE device. It was a choice of either switching back to 2G or 3G to handle the service through Circuit Switch Fall Back (CSFB) or keeping two different radios alive with Simultaneous Voice and LTE (SVLTE), as is the case for CDMA operators such as Verizon.

While apparently simple to implement, those two solutions are less than ideal for a number of reasons:
- It increases signalling traffic to a significant extent as the user equipment (the mobile device) is constantly switching from one mode (LTE) to another. In the early days of LTE deployments, this even caused network outages, namely on the Verizon Wireless network. Even though infrastructures have been updated to better handle signalling, this is still a hurdle for network operators.
- It slows down the transition to LTE and requires keeping the 2G network active. Since 2G networks will still be in operation for a long time yet, especially for M2M usage, operators need to maintain resources for them, resources that are then not available for 3G and 4G networks. As LTE refarming is used increasingly by operators, it is of paramount importance in order to streamline importance and speed-up deployments.

The VoLTE-focused activities of the following companies and organisations are reviewed in some detail in this report, either in dedicated sections, or in substantive descriptions in the relevant narrative text.

Algérie Télécom (Algeria)
Apple (USA)
Bouygues (France)
China Mobile (China)
Everything Everywhere (UK)
GSM Association (international)
KT (South Korea)
LG U+ (South Korea)
MetroPCS (USA)
Orange (France)
SFR (France)
SingTel (Singapore)
SK Telecom (South Korea)
Sprint (USA)
T-Mobile (USA)
Verizon Wireless (USA)

Get Industry Insights. Simply.

  • Latest reports & slideshows with insights from top research analysts
  • 150+ Million searchable statistics with tables, figures & datasets
  • More than 25,000 trusted sources
  • Single User License — provides access to the report by one individual.
  • Department License — allows you to share the report with up to 5 users
  • Site License — allows the report to be shared amongst all employees in a defined country
  • Corporate License — allows for complete access, globally.
Ahmad helps you find the right report:

The research specialist advised us on the best content for our needs and provided a great report and follow-up, thanks very much we shall look at ReportLinker in the future.

Kate Merrick

Global Marketing Manager at
Eurotherm by Schneider Electric

We were impressed with the support that ReportLinker’s research specialists’ team provided. The report we purchased was useful and provided exactly what we want.

Category Manager at

ReportLinker gave access to reliable and useful data while avoiding dispersing resources and spending too much time on unnecessary research.

Executive Director at
PwC Advisory

The customer service was fast, responsive, and 100% professional in all my dealings (...) If we have more research needs, I'll certainly prioritize working with ReportLinker!

Scott Griffith

Vice President Marketing at
Maurice Sporting Goods

The research specialist provided prompt, helpful instructions for accessing ReportLinker's product. He also followed up to make sure everything went smoothly and to ensure an easy transition to the next stage of my research

Jessica P Huffman

Research Associate at
American Transportation Research Institute

Excellent customer service. Very responsive and fast.

Director, Corporate Strategy at

I reached out to ReportLinker for a detailed market study on the Air Treatment industry. The quality of the report, the research specialist’s willingness to solve my queries exceeded my expectations. I would definitely recommend ReportLinker for in-depth industry information.

Mariana Mendoza

Global Platform Senior Manager at
Whirlpool Corporation

Thanks! I like what you've provided and will certainly come back if I need to do further research works.

Bee Hin Png

CEO at
LDR Pte Ltd

The research specialist advised us on the best content for our needs and provided a great report and follow-up, thanks very much we shall look at ReportLinker in the future.

Kate Merrick

Global Marketing Manager at
Eurotherm by Schneider Electric

  • How we can help
    • I am not sure if the report I am interested in will fulfill my needs. Can you help me?
    • Yes, of course. You can call us at +33(0) 4 37 65 17 03 or drop us an email at researchadvisor@reportlinker.com to let us know more about your requirements.
    • We buy reports often - can ReportLinker get me any benefits?
    • Yes. Set up a call with a Senior Research Advisor to learn more - researchadvisor@reportlinker.com or +33(0) 4 37 65 17 03.
    • I have had negative experiences with market research reports before. How can you avoid this from happening again?
    • We advise all clients to read the TOC and Summary and list your questions so that we can get more insight for you before you make any purchase decision. A research advisor will accompany you so that you can compare samples and reports from different sources, and choose the study that is right for you.

  • Report Delivery
    • How and when I will receive my Report?
    • Most reports are delivered right away in a pdf format, while others are accessed via a secure link and access codes. Do note that sometimes reports are sent within a 12 hour period, depending on the time zones. However, you can contact us to escalate this. Should you need a hard copy, you can check if this option is offered for the particular report, and pay the related fees.
  • Payment conditions
    • What payment methods do you accept?
      1. Credit card : VISA, American Express, Mastercard, or
      2. You can download an invoice to pay by wire transfer, check, or via a Purchase Order from your company, or
      3. You can pay via a Check made out in US Dollars, Euros, or British Pounds for the full amount made payable to ReportLinker
    • What are ReportLinker’s Payment Terms?
    • All payments must normally be submitted within 30 days. However, you can let us know if you need extended time.
    • Are Taxes and duties included?
    • All companies based in France must pay a 20% tax per report. The same applies to all individuals based in the EU. All EU companies must supply their VAT number when purchasing to avoid this charge.
    • I’m not satisfied. Can I be refunded?
    • No. Once your order has been processed and the publisher has received a notification to send you the report, we cannot issue any refund or cancel any order. As these are not ‘traditional’ products that can be returned, reports that are dispatched are considered to be ‘consumed’.
  • User license
    • The license that you should acquire depends on the number of persons that need to access the report. This can range from Single User (only one person will have the right to read or access the report), or Department License (up to 5 persons), to Site License (a group of persons based in the same company location), or Corporate License (the entire company personnel based worldwide). However, as publishers have different terms and conditions, we can look into this for you.
Purchase Reports From Reputable Market Research Publishers

Public Safety-LTE Market with COVID-19 Impact Analysis by Infrastructure, Services, Deployment Model, Application And Region - Global Forecast to 2025

  • $ 4950
  • August 2020
  • 275 pages

The public safety-LTE market is projected to grow at a CAGR of 21.1% from 2020 to 2025. The Public safety LTE market is expected to be valued at USD 5.9 billion in 2020 and is likely to reach USD 15.4 ...

  • World
  • North America
  • Mobile Services
  • Industry analysis
  • Broadband Penetration
  • Electricity Generation

Global Massive MIMO Industry $ 4950 July 2020


Reportlinker.com © Copyright 2020. All rights reserved.

ReportLinker simplifies how Analysts and Decision Makers get industry data for their business.

Make sure you don’t miss any news and follow us on