Wireless / Most Viewed

WiMAX vs. WiFi

In fact WiFi (technically standard 802.11) and WiMAX (802.16) don't compete for broadband users or applications today. That's partly because WiFi is widely deployed and WiMAX is still largely an unfulfilled promise and partly because the two protocols were designed for very different situations. However, if WiMAX is eventually widely deployed, there will be competition between them as last mile technologies. Some people describe the difference between WiFi and WiMAX as analogous to the difference between a cordless phone and a mobile phone... more»

Examining Two Well-Known Attacks on VoIP

VoIP is here to stay. In fact many incumbent telecommunication carriers have started offering VoIP service for sometime and several new VoIP service providers have emerged. Aside from issues such as quality of service, the aspect of security, or lack thereof, is misunderstood by some of the VoIP service providers. This purpose of this article is to discuss two of the most well known attacks that can be carried out in current VoIP deployments. more»


Mobile WiMAX, with the release of 2×2 MIMO chips in 2008, gives WiMAX a lead of two or so years on its major competitor -- the 3GPP's LTE. However, 3G cellphones using 3GPP UMTS technologies, extended to higher speeds with HSPA, is widely used in handsets in many countries. In North America, 3GPP2 CDMA2000 and EV-DO are widely used, but these are likely to be replaced over time by LTE and to some extent WiMAX. more»

Convergence: ENUM is a Big Deal

Convergence as a technology concept has been around for decades. Many have predicted the convergence of electronics and entertainment, of PC's and TV's, and more recently of WiFi and cellular. All of these areas are in fact undergoing various degrees of convergence but there is another area that many are not as familiar with. It is called ENUM...The idea can be extremely useful when you consider that most telephones are limited to twelve keys on a keypad. Ever tried to enter your alphanumeric login ID and password to a web site on a cell phone or Personal Digital Assistant? It is next to impossible! The biggest impact of ENUM will probably be for Voice Over IP (VoIP). In fact, it could be the tipping point. ENUM is a really big deal. more»

Verizon Mandates IPv6 Support for Next-Gen Cell Phones

Cell phone carriers have seen a huge growth in wireless data usage. The iPhone is selling like hotcakes, and its users generate large amounts of traffic. Not surprisingly, as cellular providers deploy faster network technologies, users generate even more data... more»

Smartphones: Too Smart for Mobile Operators?

In June, the net neutrality debate took an unexpected turn when the Netherlands leap-frogged the USA to became the first country to legislate for mobile net neutrality. Business models for fixed and mobile networks must shift toward volume charges. The net neutrality debate has been seen not having much relevance outside the USA because the plight of carriers there was aggravated by unlimited usage. more»

Addressing the Future Internet

What economic and social factors are shaping our future needs and expectations for communications systems? This question was the theme of a joint National Science Foundation (NSF) and Organisation for Economic Co Operation and Development (OECD) workshop, held on the 31st January of this year. The approach taken for this workshop was to assemble a group of technologists, economists, industry, regulatory and political actors and ask each of them to consider a small set of specific questions related to a future Internet. Thankfully, this exercise was not just another search for the next "Killer App", nor a design exercise for IP version 7. It was a valuable opportunity to pause and reflect on some of the sins of omission in today's Internet and ask why, and reflect on some of the unintended consequences of the Internet and ask if they were truly unavoidable consequences... more»

A Balkanized Internet Future?

Joi Ito has an important post [also featured on CircleID] on how the internet is in danger of becoming balkanized into separate "internets". He's not the only person who's concerned. Greg Walton worries about Regime Change on the Internet. My friend Tim Wu, a law professor specializing in international trade and intellectual property, has written an article for Slate: The Filtered Future: China's bid to divide the Internet... more»

Vint Cerf Speaking Out on Internet Neutrality

In a U.S. congress hearing held yesterday November 9th, significant focus was projected on "network neutrality" and a new telecommunications bill affecting the Internet. "This bill could fundamentally alter the fabulously successful end-to-end Internet," says Alan Davidson in the post on Google blog. Vint Cerf was not able to testify because of the Presidential Medal of Freedom award ceremony at the White House, but submitted the following letter to the hearing... more»

ICANN, WSIS and the Making of a Global Civil Society - Part I

This is the first part of a two-part series interview by Geert Lovink with Milton Mueller discussing ICANN, World Summit on the Information Society, and the escalating debates over Internet Governance. Read the second part of this Interview here. Geert Lovink: "Would it make sense to analyse ICANN (and its predecessors) as a test model for some sort of secretive 'world government' that is run by self appointed experts? Could you explain why governments are seen as incapable of running the Internet? This all comes close to a conspiracy theory. I am not at all a fan of such reductionist easy-to-understand explanations. However, the discontent with 'global governance' discourse is widespread and it seems that the International Relations experts have little understanding how the Internet is actually run. Where do you think theorization of Internet governance should start?" more»

700 MHz Auction Winners: Why Block C Matters

Today the FCC announced the winners of the 700 MHz auction -- and you can see from pp. 62-63 of this document that Verizon won Block C. (Block C was set up in two nationwide paired blocks of 11 MHz each, which were auctioned off in very large geographic areas -- 12 licenses, each covering a "Regional Economic Area Grouping". Verizon won seven of the twelve licenses, covering all of the US except Alaska, Puerto Rico, American Samoa, Guam, and the Northern Mariana Islands.) Why does this matter? more»

The Great Internet Transformation? A First Stab

Is it just a coincidence that some of the leading Internet-based application companies are pushing aggressively into network connectivity at exactly the same time the major telephone companies are pushing into content? Or are we witnessing the end of the Internet as we know it? Think back to the online world fifteen years ago. There was AOL, there was Compuserve, there was Prodigy, and there was Apple's eWorld. Sure, there were researchers and students posting to Usenet newsgroups and navigating through Gopher sites, but the Internet was a sideshow for individuals and business users. ...the online world of those days was fragmented and small. Every online service was an island. Are we going back to those days? more»

An Interview With Richard Whitt, Google's Washington Telecom and Media Counsel

I recently had the opportunity to interview, Richard Whitt, Google's Washington Telecom and Media Counsel, who will be one of the keynote speakers at the upcoming Emerging Communications Conference (eComm 2009) being held on March 3-5 at the San Francisco Airport Marriott. The following is the transcript of our phone conversation and the audio recording of the interview. more»

IPv6 and LTE, the Not So Long Term Evolution?

The Wall Street Journal reported that AT&T saw wireless networks about to drown under a deluge of data. To see YouTube content uploaded form an iPhone or Slingbox rerouting a favourite television program to your smart phone gives mobile network operators the shivers. Skype over 3G in the meantime gives sleepless nights, not because of surging megabyte floods but due to nightmares of considerable voice and roaming revenues washing away. Not easy to plan and engineer "managed transitions" under those circumstances. more»

HTTPS Web Hijacking Goes From Theory to Practice

I've been privately talking about the theoretical dangers of HTTPS hacking with the developers of a major web browser since 2006 and earlier last month, I published my warnings about HTTPS web hacking along with a proposed solution. A week later, Google partially implemented some of my recommendations in an early Alpha version of their Chrome 2.0 browser... This week at the Black Hat security conference in Washington DC, Moxie Marlinspike released a tool called SSL Strip... more»

Industry Updates

Virgin Media Selects Nominum to Support London Underground WiFi Roll-out

How Secure is Your Mobile Network? And Does It Even Matter? (Webinar)

Nominum Launches World's First Purpose-Built Suite of DNS‐Based Solutions for Mobile Operators

72 Confirmed Talks - If You're Attending, Now is the Time to Register

eComm 2009: Discussions on Restructuring Global Telecoms

eComm 2009 Signs Skype As Headline Sponsor Of European Conference & Awards Debut Event

Visa, NeuStar Team to Propel Trusted Mobile Payments and Financial Services Globally

dotMobi Allocates First Two-Character Mobile Domain to Fifth Third Bank

eComm 2009 Event Next Week: Defining the Post-Telecom Era

dotMobi Collaborates With GSMA for New Options With Award-Winning DeviceAtlas Product

dotMobi Brings the Mobile Web to the Masses With the Launch of Instant Mobilizer

GSMA Delivers Industry First in Carrier ENUM Initiative

dotMobi Drives Mass Market Adoption of the Mobile Web With Instant Mobilizer

dotMobi and .tel Are Complementary Domains: There is No Overlap

dotMobi Announces 2.0 Release of Award-Winning DeviceAtlas Mobile Device Database