Light Reading

China Mobile, ZTE Kick Off VoLTE Rollout

Sarah Thomas

The call of voice-over-LTE (VoLTE) is getting stronger in the Asia-Pacific region as China Mobile becomes the latest operator to offer commercial service with the help of ZTE in Guangzhou. (See China Mobile Does VoLTE With ZTE.)

Fellow ZTE Corp. (Shenzhen: 000063; Hong Kong: 0763) customer Hong Kong CSL Ltd. flipped the switch on VoLTE capabilities in its network in Hong Kong last month, becoming the first operator to activate the capability outside of South Korea. China Mobile Ltd. (NYSE: CHL) will be now the second, announcing Thursday that it has begun deploying VoLTE on its LTE TDD network with partner ZTE, starting in Guangzhou, but with plans to go nationwide in 2014. (See VoLTE Hits Hong Kong.)

ZTE is championing Single Radio Voice Call Continuity (eSRVCC) for handoff with 2G and 3G networks, and the carrier says it works seamlessly with no customer intervention and little latency. China Mobile is using ZTE's IP Multimedia Subsystem (IMS) platform and 4G smartphones with Qualcomm Inc. (Nasdaq: QCOM)'s Snapdragon 800 processor on board in the deployment.

After successfully completing VoLTE calls in China Mobile's labs back in July, ZTE proved LTE TDD VoLTE calls worked between Guangzhou and Tianjin in actual urban environments last month. (See ZTE, Marvell Break New VoLTE Ground.)

This month, carrier executives took to the road to test the strength of ZTE's eSRVCC by doing video calls in Guangzhou. Other vendors' systems and terminals were also used in the deployment, which ZTE claims demonstrates the feasibility of eSRVCC for all networks of China Mobile.

Guangzhou will still serve as something of a test bed as China Mobile sees how the initial deployment goes. But the carrier says it's on track for nationwide VoLTE before the end of the year, offering China Mobile a more efficient way to use its network and a better customer experience.

South Korea's top operator SK Telecom (Nasdaq: SKM) has been deploying commercial VoLTE service since 2012, and AT&T Inc. (NYSE: T) and Verizon Wireless in the US are both angling for deployment this year. (See South Korea Hears First 4G Voice Service, AT&T Hears Call of VoLTE in 2014, and Verizon Promises Voice-Over-LTE in 2014.)

— Sarah Reedy, Senior Editor, Light Reading

(2)  | 
Comment  | 
Print  | 
Newest First  |  Oldest First  |  Threaded View        ADD A COMMENT
User Rank: Blogger
1/12/2014 | 9:08:20 PM
Proving these calls work is one thing, but I'm interested to see what sort of test documentation the carriers launching VoLTE this year come to market with. Will they showcase quality and reliability info upfront?
User Rank: Blogger
1/9/2014 | 1:04:28 PM
ZTE Grand Memo
ZTE also announced this week that its flagship Grand Memo LTE smartphone got China Mobile's LTE TDD certification. It uses Marvell's multimode chip that supports all flavors of LTE and older networks. The release didn't say if it supported VoLTE, but seeing as Marvell demoed VoLTE calls with ZTE, I imagine it will.
From The Founder
The comms industry is rallying to the cause of open, independent interoperability testing.
Flash Poll
Live Streaming Video
CLOUD / MANAGED SERVICES: Prepping Ethernet for the Cloud
Moderator: Ray LeMaistre Panelists: Jeremy Bye, Leonard Sheahan
LRTV Interviews
Top Tips for FTTH Operators

10|8|15   |   02:26   |   (0) comments

At Gigabit Europe 2015, Ventura Team co-founder Richard Jones talks about some of the key business case considerations for FTTH network operators.
LRTV Interviews
M-net Calls for FTTx Unity

10|8|15   |   03:45   |   (0) comments

At the Gigabit Europe event, Jörn Schoof from M-net, the Munich city network operator, calls for industry collaboration on fiber broadband access rollouts.
LRTV Documentaries
The Business Case Challenge for NFV

10|7|15   |   03:47   |   (0) comments

Virtual CPE is one of the early success stories for network functions virtualization, as service providers are finding flexible, programmable CPE solves a lot of logistics problems and reduces their cost. But even here, Masergy Communications faced a business case challenge, says CTO Tim Naramore.
LRTV Interviews
JT Offers Some Gigabit Lessons

10|7|15   |   4:08   |   (1) comment

Barna Kutvolgyi, managing director, Global Consumer, at JT, the incumbent operator on the island of Jersey, talks about how other service providers can learn from his company's gigabit broadband rollout experiences.
LRTV Interviews
AT&T's Chiosi on the Potential of Open Source

10|6|15   |   06:27   |   (0) comments

AT&T Distinguished Network Architect Margaret T. Chiosi talks to Light Reading's Carol Wilson about the potential for open source technology to liberate communications service providers.
LRTV Interviews
Network Security in a Gigabit World

10|6|15   |   05:52   |   (0) comments

Masergy's James Harrison talks about some of the network security and data center issues network operators need to consider as they expand their broadband services portfolios.
LRTV Documentaries
Telefónica: In Search of Virtual Simplicity

10|5|15   |   07:30   |   (0) comments

Francisco-Javier Ramon Salguero, head of Telefónica's NFV initiative, admits virtualization initially means greater complexity, but with the right abstraction layer, it is possible to create a services-driven network architecture. He explains how Telefónica's current trials and initiatives are aimed at doing that, and what his company and other carriers need to ...
LRTV Interviews
Gigabit Europe Takeaways

10|5|15   |   03:47   |   (0) comments

Participants from the inaugural Gigabit Europe event in Munich share their key takeaways from the conference.
Women in Comms Introduction Videos
Intel Urges Women to Take Advantage of Their Seat at the Table

10|5|15   |   4:27   |   (1) comment

Have inclusive and constructive conversations, attach a bigger meaning to your work and get involved in the cause, Intel's Monique Hayward advises women in comms.
LRTV Interviews
BT Updates on Plans

10|2|15   |   03:16   |   (2) comments

Peter Bell, CIO at Openreach, the access network division at UK incumbent BT, provides an update on the operator's trials and how Openreach is planning to deploy the broadband technology in its street cabinets.
Telecom Innovators Video Showcase
Sonus Shakes Up SD-WAN

10|2|15   |   7:22   |   (0) comments

Sonus CTO Kevin Riley sat down with Light Reading to discuss the trajectory of the company, its SDN ambitions and why Sonus is taking a market-disruptive approve to SD-WAN.
LRTV Interviews
CityFibre's Gigabit Vision

10|1|15   |   03:18   |   (1) comment

Mark Collins, director of Strategy & Public Affairs at competitive UK city network operator CityFibre, talks about his company's plans to help build Gigabit Cities.
Upcoming Live Events
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
Network appliances have a strong value proposition in today's networks and will continue to do so in the NFV and SDN-enabled networks of tomorrow.
Hot Topics
Eurobites: Dunroamin'
Paul Rainford, Assistant Editor, Europe, 10/2/2015
M&A Speculation Swirls Around Juniper
Ray Le Maistre, Editor-in-chief, 10/6/2015
Cisco's Chambers Rules Out Political Bid
Mitch Wagner, West Coast Bureau Chief, Light Reading, 10/6/2015
Infinera Fleshes Out Its Metro 100G Story
Ray Le Maistre, Editor-in-chief, 10/7/2015
AT&T Gets Green Light for VoWiFi
Brian Santo, Senior editor, Test & Measurement / Components, Light Reading, 10/7/2015
Like Us on Facebook
Twitter Feed
Webinar Archive
BETWEEN THE CEOs - Executive Interviews
With so many new and exciting communications technologies now under development, it's easy to get caught up in the industry's escalating hype cycle. That's why the ...
Last week saw a big day in the 15-year history of Light Reading when Editor-in-Chief Ray Le Maistre and I were invited to interview the Deputy Chairman and Rotating ...
Cats with Phones
"What?! I'm on with Finisar about their stock price tanking" Click Here