& cplSiteName &

TeliaSonera Plots 4G Voice Service in 2013

Michelle Donegan
LR Mobile News Analysis
Michelle Donegan
3/5/2012
50%
50%

Telia Company said it expects devices that support Voice over LTE (VoLTE) to be available sometime in 2013, in an interview with Light Reading Mobile during Mobile World Congress 2012 in Barcelona last week.

Tommy Ljunggren, TeliaSonera's vice president for system development, explained the operator's Long Term Evolution (LTE) voice services strategy in an interview that occurred just after it announced that it had started to sell the first LTE smartphones in Sweden, which are also the first to be available in Europe. (See Sweden's First LTE Smartphones.)

Those first LTE handsets, which are from Samsung Electronics Co. Ltd. (Korea: SEC), support voice services via Circuit-Switch Fallback (CSFB) whereby the voice calls are actually carried by the 3G or 2G network. It works like this: in order to make or receive a voice call, any LTE data session will stop and the device will switch to, or "fall back" to, the 3G network to make the voice call and resume the data session. (See Operators Raise Voice Services on LTE and LTE Voice Lag Leaves Operators Vulnerable .)

For LTE voice services, TeliaSonera believes both CSFB and VoLTE will be needed and it is evaluating how and when to launch the IP Multimedia Subsystem (IMS)-based service. With VoLTE, the voice call is delivered in IP packets just like the data.

"We're looking at how and when to launch VoLTE," said Ljunggren. "The indication is that terminals that can support VoLTE will be there next year. ... That's the time frame we talk about."

Here's the full interview (tip: Ljunggren discusses the operator's VoLTE plans at around the two-minute mark):



In the interview, Ljunggren also explained TeliaSonera's new pricing policy for third-party free VoIP applications as well as what kinds of services are driving usage on its 4G networks in Europe. (See TeliaSonera Chokes Free VoIP Services .)

— Michelle Donegan, European Editor, Light Reading Mobile

(2)  | 
Comment  | 
Print  | 
Newest First  |  Oldest First  |  Threaded View        ADD A COMMENT
joset01
50%
50%
joset01,
User Rank: Light Beer
12/5/2012 | 5:40:41 PM
re: TeliaSonera Plots 4G Voice Service in 2013


How fast can they set up sessions etc?

Michelle Donegan
50%
50%
Michelle Donegan,
User Rank: Light Beer
12/5/2012 | 5:40:35 PM
re: TeliaSonera Plots 4G Voice Service in 2013


AT&T uses the same technique as TeliaSonera to get voice onto an LTE smartphone (that is, falling back to the 2G or 3G network). AT&T has had LTE smartphones on the market for longer than TeliaSonera, so what's the service like there -- is it as clunky in practice as it sounds?


Do you notice a delay to make or receive voice calls? And how noticeable is the data difference when your device swtiches from LTE to 3G?


I've heard that when the LTE handset falls back from LTE to 3G connection that been upgraded to 42Mbit/s, the gap in performance would not that big and you would barely tell the difference. What's it really like? 

Featured Video
From The Founder
Light Reading founder Steve Saunders grills Cisco's Roland Acra on how he's bringing automation to life inside the data center.
Flash Poll
Upcoming Live Events
February 26-28, 2018, Santa Clara Convention Center, CA
March 20-22, 2018, Denver Marriott Tech Center
April 4, 2018, The Westin Dallas Downtown, Dallas
May 14-17, 2018, Austin Convention Center
All Upcoming Live Events
Infographics
SmartNICs aren't just about achieving scale. They also have a major impact in reducing CAPEX and OPEX requirements.
Hot Topics
Here's Pai in Your Eye
Alan Breznick, Cable/Video Practice Leader, Light Reading, 12/11/2017
Project AirGig Goes Down to Georgia
Dan Jones, Mobile Editor, 12/13/2017
Verizon's New Fios TV Is No More
Mari Silbey, Senior Editor, Cable/Video, 12/12/2017
Ericsson & Samsung to Supply Verizon With Fixed 5G Gear
Dan Jones, Mobile Editor, 12/11/2017
Juniper Turns Contrail Into a Platform for Multicloud
Craig Matsumoto, Editor-in-Chief, Light Reading, 12/12/2017
Animals with Phones
Don't Fall Asleep on the Job! Click Here
Live Digital Audio

Understanding the full experience of women in technology requires starting at the collegiate level (or sooner) and studying the technologies women are involved with, company cultures they're part of and personal experiences of individuals.

During this WiC radio show, we will talk with Nicole Engelbert, the director of Research & Analysis for Ovum Technology and a 23-year telecom industry veteran, about her experiences and perspectives on women in tech. Engelbert covers infrastructure, applications and industries for Ovum, but she is also involved in the research firm's higher education team and has helped colleges and universities globally leverage technology as a strategy for improving recruitment, retention and graduation performance.

She will share her unique insight into the collegiate level, where women pursuing engineering and STEM-related degrees is dwindling. Engelbert will also reveal new, original Ovum research on the topics of artificial intelligence, the Internet of Things, security and augmented reality, as well as discuss what each of those technologies might mean for women in our field. As always, we'll also leave plenty of time to answer all your questions live on the air and chat board.

Like Us on Facebook
Twitter Feed