Email Delivery

Receive new posts as email.

Email address

Syndicate this site

RSS 0.91 | RSS 2.0
RDF | Atom
Podcast only feed (RSS 2.0 format)
Get an RSS reader
Get a Podcast receiver


About This Site
Contact Us
Privacy Policy



Web this site

January 2007
Sun Mon Tues Wed Thurs Fri Sat
  1 2 3 4 5 6
7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30 31      

Stories by Category

Academia :: Academia
Administrative :: Administrative
Convergence :: Convergence
Future :: Future
Hardware :: Hardware Chips Devices Voice Devices
Hotspots :: Hotspots
Industry Issues :: Industry Issues Competition Deals
Internet telephony :: Internet telephony
Legal :: Legal Lawsuits regulatory
Service Launches :: Service Launches Trials
Software :: Software
Standards :: Standards IMS SIP UMA
Temporary Ntworks :: Temporary Ntworks
VoIP Networks :: VoIP Networks Gizmo Project Skype
VoWLAN :: VoWLAN Testing
Voice over IP over Cellular :: Voice over IP over Cellular
limitations :: limitations


January 2007 | December 2006 | November 2006 | October 2006 | September 2006 | August 2006 | July 2006 | June 2006 | May 2006 | April 2006 | March 2006 | February 2006 | January 2006 | December 2005 | November 2005 | October 2005 | September 2005 | July 2005 | June 2005 | May 2005 | April 2005 | March 2005 |

Recent Entries

Round Up of Three Portable VoIP Phones
iPhone Launches--No, Not That One
Review of T-Mobile's UMA Service
Skype Beta for Windows Mobile Released
Broadcom Says Wi-Fi Phones Won't Replace Cellular
Truphone, The Cloud Partner for Calling with Nokia Phones
Vonage, Finally, Plans for Wi-Fi Phone
T-Mobile's HotSpot@Home May Challenge Other Operators
Belkin Wi-Fi Skype Phone Reviewed
Roaming by Phone with Wi-Fi (NY Times)

Site Philosophy

This site operates as an independent editorial operation. Advertising, sponsorships, and other non-editorial materials represent the opinions and messages of their respective origins, and not of the site operator or JiWire, Inc.


Entire site and all contents except otherwise noted © Copyright 2001-2006 by Glenn Fleishman. Some images ©2006 Jupiterimages Corporation. All rights reserved. Please contact us for reprint rights. Linking is, of course, free and encouraged.

Powered by
Movable Type

« Hanaro Tests VoWLAN Phones | Main | VoWLAN Starts To Get Priority »

September 22, 2005

UMA Handsets To Appear

By Glenn Fleishman

The Register reports that LG will ship the first UMA handset: UMA uses a local link to connect to a voice signal to an existing cellular infrastructure. Many analysts expect cell operators to push UMA as a way to move load from cell towers to home and office Wi-Fi (and even wired) networks. LG’s LG-CL400 handset should be the first to hit the U.S. market, Andrew Orlowski reports.

The article says that BenQ’s UMA PocketPC handset is slowly coming to market, while Nokia and Symbian will work with Kineto Wireless to produce UMA devices.

The key difference between Internet telephony using VoIP and UMA is that UMA doesn’t transit voice data over the public Internet. UMA will probably require partnerships with service providers to be entirely effective.

Posted by Glennf at September 22, 2005 10:40 AM

Categories: UMA

Trackback Pings

TrackBack URL for this entry:


Just a comment on your note that UMA doesn't transport Voice over the public internet. In fact that's the whole point of UMA. You can use your corporate or home WLAN AP (that is connected to the internet) to gain access to the mobile operators services.

The traffic is tunnelled to the operators access node using IPSec tunneling and IKE authentication (usink EAP-SIM or EAP-AKA). So the voice traffic does travel on the public internet albeit tunnelled.

If you ppoint was that it doesn't provide access to other VoIP services on the public internet, that is true. But then again that is true for most current VoIP solutions that require some gateways to connect to other systems.

[Editor's note: This is, of course, true, but I would contrast UMA with something like Speakeasy Networks's VoIP deployment in which Speakeasy only offers VoIP to its DSL/digital line subscribers. They split voice at the edge rather than transiting voice beyond their local network.--gf]

Posted by: Jake at October 13, 2005 4:23 AM

Post a comment

Remember Me?