Welcome!

Machine Learning Authors: Pat Romanski, Progress Blog, Liz McMillan, Elizabeth White, Mehdi Daoudi

News Feed Item

Signals Research Group’s New Benchmark Study Reveals VoLTE Outperforms Both 3G Circuit Switched Voice and Skype

Spirent Communications, the leader in testing networks, services and devices, announced today it is collaborating with Signals Research Group (SRG) to conduct a two-part study that evaluates the VoLTE User Experience by analyzing VoLTE voice quality, call performance and battery performance. The recently completed part one of this benchmark study compared VoLTE service to 3G Circuit Switched Voice and Over The Top (OTT) Skype Voice Service on the live network of a major US operator. The study revealed VoLTE is worth the wait and successfully delivers on the promise of superior Quality of Experience (QoE) and efficient use of network resources.

Some key highlights of the study include:

  • VoLTE call quality, measured in terms of MOS using the industry-accepted POLQA algorithm, greatly exceeded that of 3G CS voice and was measurably higher than Skype Voice;
  • VoLTE performance was considerably better than that of Skype when network loading and background applications were running on the mobile phone and transferring data with the network;
  • VoLTE displayed significantly shorter call set up times than Circuit-Switched Fallback (CSFB);
  • VoLTE required substantially fewer network resources than Skype which resulted in a far greater network efficiency and a meaningfully-longer estimated mobile battery life.

“Although conceptually I understood the potential benefits of VoLTE, it wasn’t until we analyzed the results that we collected with Spirent that I truly appreciated the incremental benefits that VoLTE offers,” commented Michael Thelander, the President of Signals Research Group. “I am really looking forward to the second part of our study when we have the opportunity to do sensitivity studies and take observations made in the field and confirm them in a tightly-controlled lab environment with Spirent’s test equipment and engineering resources.”

With OTT services such as Skype being readily available to mobile users, the driver behind VoLTE deployment is the opportunity for wireless carriers to realize the full potential of LTE and provide a guaranteed Quality of Service (QoS) for voice services on their LTE network. The study results validated that, although both VoLTE and Skype support HD Voice, VoLTE-specific features such as guaranteed bearer (i.e. ability to treat voice calls with higher priority over best-effort data packets) make the difference and deliver a much higher quality voice service to the mobile user. Additional positive network and user experience implications are expected as carriers push to launch improvements in their LTE deployments and expand LTE coverage.

“It was Spirent’s sincere pleasure to collaborate with SRG on this long-awaited VoLTE study,” said Nigel Wright, Vice President Spirent Communications. “We have been aggressively working with leading carriers, device and chipset manufacturers for the past several years on testing everything VoLTE and we are delighted to showcase the arrival of a superior experience for the mobile user.”

In this study, the Spirent Nomad User Experience Analytics System was used to measure the call quality (in terms of MOS) of the three voice applications and to control and capture performance data during the call setup and reliability tests. The Spirent Quantum Battery Life Measurement System was used to measure power consumption, current drain and the implied battery life for the three applications, plus Skype Video. Spirent Datum was used to simulate real world data usage.

The two measurement systems can also be used in a controlled lab environment with data captured from the live network to replicate many of the same test scenarios. This powerful ability enables the introduction of subtle changes such as different RF conditions and IP impairments to generate a more detailed VoLTE user experience analysis, which will be the focus of a second part of this benchmark study.

For a preview of the report in Signals Ahead, “Behind The VoLTE Curtain, Part 1: Quantifying The Performance of a Commercial VoLTE Deployment” please visit the consultancy’s website at www.signalsresearch.com.

For more information on Spirent’s Nomad User Experience Analytics System, please visit http://www.spirent.com/Service-Experience/Fit4Launch_Measurement_Systems/Nomad_HD.

For more information on Spirent’s Quantum Battery Performance Measurement System, please visit http://www.spirent.com/Service-Experience/Fit4Launch_Measurement_Systems/Quantum.

About Spirent Communications plc

Spirent Communications plc. (LSE: SPT), a global leader in test and measurement, offers an extensive portfolio of solutions to test data centers, cloud computing and virtualized environments, high speed Ethernet networks and services, 3G/4G wireless networks and devices, network and application security, and positioning technologies. For more information visit http://www.spirent.com/about-us/News_Room/About_Spirent_Communications_plc.aspx

More Stories By Business Wire

Copyright © 2009 Business Wire. All rights reserved. Republication or redistribution of Business Wire content is expressly prohibited without the prior written consent of Business Wire. Business Wire shall not be liable for any errors or delays in the content, or for any actions taken in reliance thereon.

@CloudExpo Stories
Internet of @ThingsExpo, taking place October 31 - November 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 21st Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. The Internet of Things (IoT) is the most profound change in personal and enterprise IT since the creation of the Worldwide Web more than 20 years ago. All major researchers estimate there will be tens of billions devic...
While some vendors scramble to create and sell you a fancy solution for monitoring your spanking new Amazon Lambdas, hear how you can do it on the cheap using just built-in Java APIs yourself. By exploiting a little-known fact that Lambdas aren’t exactly single-threaded, you can effectively identify hot spots in your serverless code. In his session at @DevOpsSummit at 21st Cloud Expo, Dave Martin, Product owner at CA Technologies, will give a live demonstration and code walkthrough, showing how ...
The question before companies today is not whether to become intelligent, it’s a question of how and how fast. The key is to adopt and deploy an intelligent application strategy while simultaneously preparing to scale that intelligence. In her session at 21st Cloud Expo, Sangeeta Chakraborty, Chief Customer Officer at Ayasdi, will provide a tactical framework to become a truly intelligent enterprise, including how to identify the right applications for AI, how to build a Center of Excellence to ...
As DevOps methodologies expand their reach across the enterprise, organizations face the daunting challenge of adapting related cloud strategies to ensure optimal alignment, from managing complexity to ensuring proper governance. How can culture, automation, legacy apps and even budget be reexamined to enable this ongoing shift within the modern software factory?
SYS-CON Events announced today that Elastifile will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 - Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Elastifile Cloud File System (ECFS) is software-defined data infrastructure designed for seamless and efficient management of dynamic workloads across heterogeneous environments. Elastifile provides the architecture needed to optimize your hybrid cloud environment, by facilitating efficient...
There is only one world-class Cloud event on earth, and that is Cloud Expo – which returns to Silicon Valley for the 21st Cloud Expo at the Santa Clara Convention Center, October 31 - November 2, 2017. Every Global 2000 enterprise in the world is now integrating cloud computing in some form into its IT development and operations. Midsize and small businesses are also migrating to the cloud in increasing numbers. Companies are each developing their unique mix of cloud technologies and service...
@DevOpsSummit at Cloud Expo taking place Oct 31 - Nov 2, 2017, at the Santa Clara Convention Center, Santa Clara, CA, is co-located with the 21st International Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. The widespread success of cloud computing is driving the DevOps revolution in enterprise IT. Now as never before, development teams must communicate and collaborate in a dynamic, 24/7/365 environment. There is ...
SYS-CON Events announced today that Golden Gate University will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Since 1901, non-profit Golden Gate University (GGU) has been helping adults achieve their professional goals by providing high quality, practice-based undergraduate and graduate educational programs in law, taxation, business and related professions. Many of its courses are taug...
DevOps at Cloud Expo, taking place October 31 - November 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 21st Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. The widespread success of cloud computing is driving the DevOps revolution in enterprise IT. Now as never before, development teams must communicate and collaborate in a dynamic, 24/7/365 environment. There is no time to w...
With Cloud Foundry you can easily deploy and use apps utilizing websocket technology, but not everybody realizes that scaling them out is not that trivial. In his session at 21st Cloud Expo, Roman Swoszowski, CTO and VP, Cloud Foundry Services, at Grape Up, will show you an example of how to deal with this issue. He will demonstrate a cloud-native Spring Boot app running in Cloud Foundry and communicating with clients over websocket protocol that can be easily scaled horizontally and coordinate...
SYS-CON Events announced today that DXWorldExpo has been named “Global Sponsor” of SYS-CON's 21st International Cloud Expo, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Digital Transformation is the key issue driving the global enterprise IT business. Digital Transformation is most prominent among Global 2000 enterprises and government institutions.
SYS-CON Events announced today that Grape Up will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct. 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Grape Up is a software company specializing in cloud native application development and professional services related to Cloud Foundry PaaS. With five expert teams that operate in various sectors of the market across the U.S. and Europe, Grape Up works with a variety of customers from emergi...
From 2013, NTT Communications has been providing cPaaS service, SkyWay. Its customer’s expectations for leveraging WebRTC technology are not only typical real-time communication use cases such as Web conference, remote education, but also IoT use cases such as remote camera monitoring, smart-glass, and robotic. Because of this, NTT Communications has numerous IoT business use-cases that its customers are developing on top of PaaS. WebRTC will lead IoT businesses to be more innovative and address...
21st International Cloud Expo, taking place October 31 - November 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA, will feature technical sessions from a rock star conference faculty and the leading industry players in the world. Cloud computing is now being embraced by a majority of enterprises of all sizes. Yesterday's debate about public vs. private has transformed into the reality of hybrid cloud: a recent survey shows that 74% of enterprises have a hybrid cloud strategy. Me...
In his session at 20th Cloud Expo, Scott Davis, CTO of Embotics, discussed how automation can provide the dynamic management required to cost-effectively deliver microservices and container solutions at scale. He also discussed how flexible automation is the key to effectively bridging and seamlessly coordinating both IT and developer needs for component orchestration across disparate clouds – an increasingly important requirement at today’s multi-cloud enterprise.
DevOps at Cloud Expo, taking place October 31 - November 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 21st Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. The widespread success of cloud computing is driving the DevOps revolution in enterprise IT. Now as never before, development teams must communicate and collaborate in a dynamic, 24/7/365 environment. There is no time to w...
Vulnerability management is vital for large companies that need to secure containers across thousands of hosts, but many struggle to understand how exposed they are when they discover a new high security vulnerability. In his session at 21st Cloud Expo, John Morello, CTO of Twistlock, will address this pressing concern by introducing the concept of the “Vulnerability Risk Tree API,” which brings all the data together in a simple REST endpoint, allowing companies to easily grasp the severity of t...
Recently, WebRTC has a lot of eyes from market. The use cases of WebRTC are expanding - video chat, online education, online health care etc. Not only for human-to-human communication, but also IoT use cases such as machine to human use cases can be seen recently. One of the typical use-case is remote camera monitoring. With WebRTC, people can have interoperability and flexibility for deploying monitoring service. However, the benefit of WebRTC for IoT is not only its convenience and interopera...
Any startup has to have a clear go –to-market strategy from the beginning. Similarly, any data science project has to have a go to production strategy from its first days, so it could go beyond proof-of-concept. Machine learning and artificial intelligence in production would result in hundreds of training pipelines and machine learning models that are continuously revised by teams of data scientists and seamlessly connected with web applications for tenants and users.
IT organizations are moving to the cloud in hopes to approve efficiency, increase agility and save money. Migrating workloads might seem like a simple task, but what many businesses don’t realize is that application migration criteria differs across organizations, making it difficult for architects to arrive at an accurate TCO number. In his session at 21st Cloud Expo, Joe Kinsella, CTO of CloudHealth Technologies, will offer a systematic approach to understanding the TCO of a cloud application...