Light Reading

T-Mobile Beats AT&T, Verizon to VoLTE

Sarah Thomas
5/22/2014
50%
50%

T-Mobile is officially the first Tier 1 US operator to go live with voice over LTE, having launched the 4G voice service near its home market of Seattle.

The carrier is beating AT&T Inc. (NYSE: T) by one day in announcing its service is live in Seattle and working on the LG Electronics Inc. (London: LGLD; Korea: 6657.KS) G Flex and the Samsung Corp. Galaxy Note 3 and Galaxy Light via a software update. AT&T plans to launch VoLTE in parts of four states tomorrow, and Verizon Wireless has said it will go live with its 4G voice service with HD voice and video calling sometime in the coming months. (See Verizon's Journey to VoLTE, in Videos and AT&T Confirms VoLTE Launch in 4 States.)

T-Mobile US Inc. -owned MetroPCS was actually the first to launch VoLTE in the US back in 2012, so the carrier might have had a leg up. It will offer VoLTE with HD voice, which it has been providing for 3G calls since January 2013. In a blog post on the launch, T-Mobile CTO Neville Ray wrote the carrier has "been working hard on a LTE Advanced version of VoLTE, which we plan to roll out to more T-Mobile customers throughout the coming year." (See MetroPCS Changes Course on 4G Voice.)

Ray also wrote that the carrier will be the first in the US to use enhanced single-radio voice call continuity (eSRVCC) to ensure calls aren't dropped when its customers move from an LTE pocket to an HSPA+ or 2G area. He called VoLTE a step toward offering a host of rich communications services and additional innovations around WiFi calling in the coming months, suggesting T-Mobile's launch will just include HD voice initially.

After months -- even years -- of delays, VoLTE is finally coming to the US. Sprint Corp. (NYSE: S) is the only operator that has yet to give a solid timeline for deploying its version of the 4G voice technology. (See VoLTE: So Close You Can Hear It and Sprint Taps BroadSoft for VoLTE Transition.)

— Sarah Reedy, Senior Editor, Light Reading

(10)  | 
Comment  | 
Print  | 
Newest First  |  Oldest First  |  Threaded View        ADD A COMMENT
RitchBlasi
50%
50%
RitchBlasi,
User Rank: Light Sabre
5/27/2014 | 2:01:06 PM
VoLTE
Here we go again with the boasting rights.  None of this is going to be a big deal until there is a national footprint.  Even if backward compatibility works flawlessly.  For Verizon, VoLTE makes sense since it wasn't able to offer simultaneous voice and data, for GSM guys, it's the next evolutionary step and maybe not required as much.  Legre can add this to his "no-contract/contract," and "intl roaming on 2G" feathers in his caps.  He might want to keep an eye on those profits though.
Mitch Wagner
50%
50%
Mitch Wagner,
User Rank: Lightning
5/23/2014 | 1:46:44 PM
Re: VoLTE wars
I expect the iPhone will get support for VoLTE soon enough. 

The iPhone is reportedly technically capable of supporting VoLTE now, but there are network barriers. Also, battery life is something to be concerned about. The iPhone 5, at least, has pretty bad battery life even without VoLTE making an additional drain. 
DHagar
50%
50%
DHagar,
User Rank: Light Sabre
5/22/2014 | 8:08:22 PM
Re: VoLTE
@FakeMitchWagner, first counts doesn't it?

This sounds like we are moving forward into the future - the race is on!
Mitch Wagner
50%
50%
Mitch Wagner,
User Rank: Lightning
5/22/2014 | 7:31:32 PM
Re: VoLTE wars
One day lead doesn't make much difference, but it's a nice way to tweak the competition. 
Mitch Wagner
50%
50%
Mitch Wagner,
User Rank: Lightning
5/22/2014 | 7:30:57 PM
Re: VoLTE wars
Do you know if the iPhone 5 supports VoLTE? Reason I ask is that it already has terrible battery life, and if VoLTE drains the battery well that will just exacerbate the problem. 
KBode
50%
50%
KBode,
User Rank: Light Sabre
5/22/2014 | 5:07:13 PM
Re: VoLTE wars
Eager to see some actual hands on. Have they resolved the battery issues that delayed so many of these deployments to begin with?
Educational Resources
sponsor supplied content
Educational Resources Archive
From The Founder
Against the odds, Huawei is growing its telecoms networking equipment business in the US -- that should be ringing some alarm bells for domestic vendors.
Flash Poll
Live Streaming Video
CLOUD / MANAGED SERVICES: Prepping Ethernet for the Cloud
Moderator: Ray LeMaistre Panelists: Jeremy Bye, Leonard Sheahan
Between the CEOs
CEO Chat With Jeff Miller, ActiveVideo

8|28|15   |   19:05   |   (0) comments


Jeff Miller, President and CEO of ActiveVideo, talks to Light Reading founder and CEO Steve Saunders about the impact of virtualization on the TV and video distribution market.
LRTV Huawei Video Resource Center
Vodafone: Mobile Money Is About Customer Trust

8|27|15   |   06.36   |   (0) comments


Light Reading spoke with Vodafone's Ian Ravenscroft about the unique responsibilities and opportunities facing operators handling customers' financial transactions over the network.
Telecom Innovators Video Showcase
Palo Alto Networks on Expanding in the Carrier/Service Provider Market

8|26|15   |   07:54   |   (0) comments


Alfred Lee from Palo Alto Networks tells Steve Saunders about their new chassis-based system, the PA-7080, and how it can benefit service providers compared to legacy firewalls.
LRTV Custom TV
Global Services Forum Preview

8|25|15   |   02:36   |   (0) comments


Light Reading's CEO and Founder Steve Saunders talks about Huawei's upcoming Global Services Forum with the help of Heavy Reading's Patrick Donegan and Teresa Mastrangelo.
Telecom Innovators Video Showcase
Infoblox on DNS Threat Index

8|19|15   |   04:39   |   (0) comments


Dilip Pillaipakam from Infoblox talks to Steve Saunders about his company's core network services.
Between the CEOs
CEO Chat With Ihab Tarazi, Equinix

8|14|15   |   20:18   |   (1) comment


Equinix CTO Ihab Tarazi talks to Light Reading founder and CEO Steve Saunders about the dramatic changes in the data center, cloud and interconnect markets and discusses the impact of SDN and NFV in the coming years.
Telecom Innovators Video Showcase
The Netformx Ecosystem

8|14|15   |   09:39   |   (1) comment


Ittai Bareket, CEO of Netformx, talks with Steve Saunders about the Netformx Ecosystem, which employs cutting-edge prescriptive analytics to help solution providers maximize profits.
Telecom Innovators Video Showcase
Versa Networks on Leveraging VNFs

8|12|15   |   07:37   |   (0) comments


Kumar Mehta, founder and CEO of stealth mode startup Versa Networks, talks with Steve Saunders about how providers can best leverage virtualized network functions (VNFs).
LRTV Custom TV
Transforming the Network Through OPNFV

8|5|15   |   7:09   |   (0) comments


Sandra Rivera, VP Data Center Group; GM Network Platforms Group, Intel Corporation, on OPNFV Arno and how the industry is coming together to accelerate the deployment of NFV and transform the network.
LRTV Huawei Video Resource Center
Huawei ONS Product Demo

8|3|15   |   6:01   |   (0) comments


Huawei shows at Open Networking Summit 2015 in Santa Clara how its SDN and NFV solutions embrace openness.
LRTV Custom TV
End-User or Enterprise Benefits to the New IP

7|30|15   |   04:27   |   (1) comment


Andrew Coward discusses what the New IP means to end users or enterprise customers. He explains compelling reasons, including how every customer can get their own network, from the transformation to the New IP.
LRTV Custom TV
Network Visibility & the New IP

7|30|15   |   02:23   |   (0) comments


Mukund Srigopal provides an explanation of what network visibility is and how it is essential as service providers transition to the New IP. In addition, the importance of the network packet broker is discussed.
Upcoming Live Events
September 16-17, 2015, The Westin Galleria Dallas, Dallas, TX
September 16, 2015, The Westin Galleria Dallas, Dallas, TX
September 16, 2015, The Westin Galleria Dallas, Dallas, TX
September 29-30, 2015, The Westin Grand Müchen, Munich, Germany
October 14-15, 2015, New Orleans Ernest N. Morial Convention Center, New Orleans, LA
November 5, 2015, Hilton Santa Clara, Santa Clara, CA
November 17, 2015, Santa Clara, California
December 1, 2015, The Westin Times Square, New York City
December 2, 2015, The Westin Times Square, New York City
All Upcoming Live Events
Infographics
Cisco's cloud and virtualization portfolio can increase business agility and innovation by building a more flexible network architecture.
Hot Topics
Verizon Hums a Driving Tune
Sarah Thomas, Editorial Operations Director, 8/26/2015
Gogo Approved to Speed Up In-Flight WiFi
Sarah Thomas, Editorial Operations Director, 8/24/2015
Could Market Volatility Hurt Tech IPOs?
Dan Jones, Mobile Editor, 8/24/2015
Sprint's Claure: '3 to 5 Years' to Turnaround
Dan Jones, Mobile Editor, 8/25/2015
Like Us on Facebook
Twitter Feed
September 22, 2015
Media Begins With “Me”
Webinar Archive
BETWEEN THE CEOs - Executive Interviews
Jeff Miller, President and CEO of ActiveVideo, talks to Light Reading founder and CEO Steve Saunders about the impact of virtualization on the TV and video distribution market.
Equinix CTO Ihab Tarazi talks to Light Reading founder and CEO Steve Saunders about data center, cloud and the impact of virtualization in the coming years.
Cats with Phones
Cats Are a Smartphone's Best Friend Click Here
Whoever said cats didn't live to please their humans?