Telecom / Most Viewed

Starlink Simulation Shows Low Latency Without Inter-Satellite Laser Links

Handley's simulation shows that, while not as fast as an equivalent ISLL path, long bent-pipe paths would typically have lower latency than terrestrial fiber routes between the same two points. Mark Handley, a professor at University College London, has made two terrific videos based on runs of his simulation of the first – 1,584 satellite – phase of SpaceX's Starlink Internet-service constellation. I discussed the first video, which assumes that the satellites have inter-satellite laser links (ISLLs), in recent post. more

A Closer Look at Iran’s State of Internet, Strange Transit Changes in Wake of Controversial Election

Many media sources have reported outages in Iranian mobile networks and Internet services in the wake of Friday's controversial elections. We took a look at the state of Iranian Internet transit, as seen in the aggregated global routing tables, and found that the story is not as clear-cut as has been reported. There's no question that something large happened in the Iranian telecom space, and that the timing aligns with the close of voting and the emerging controversy... more

OneWeb Satellite Internet Project Status Update

SpaceX and OneWeb are formidable, experienced competitors in a race to become global Internet service providers using satellite constellations -- routers in space. I posted a status report on SpaceX last week, now let's look at OneWeb. OneWeb founder and executive chairman Greg Wyler has extensive experience with networking in developing nations. In 2003 his company, Terracom, signed a contract to connect Rwandan schools, government institutions, and homes. more

SpaceX Starlink Beta and Beyond

SpaceX began public beta testing of the Starlink Internet service in the northern US late last October. Since then, they have made many software updates based on the beta experience and have expanded the uninterrupted-coverage area by launching new satellites. By the end of the year, they had begun beta service in southern Canada and sent beta test invitations to a few UK users. The beta-eligibility area is expected to expand from the current 45-53 degree latitude this month or next. more

Why Do We Care About Names and Numbers?

An article based on the most recent study for the European Commission on the Policy Implications of Convergence in the Field of Naming, Numbering and Addressing written by Joe McNamee and Tiina Satuli of Political Intelligence.

"With relation to the Internet and also IP addresses, the "scarcity" is more complicated: there are not only intellectual property issues with regards to domain names, but there is also an issue of managing the integrity of the system. For any naming or numbering system to work, it is essential that the names and addresses used cannot be confused with any other -- in other words, no one system can have two end-points with the same fully qualified number or name..." more

The Directory Dilemma - Why Facebook, Google and Skype May Win the Mobile App War

As much as I am enjoying the new Wire app, there is a fundamental dilemma that Wire faces... as well as Talko, Firefox Hello, Subrosa and every other Over-The-Top (OTT) or WebRTC application that is seeking to become THE way that we communicate via voice, chat and/or video from our mobile phones and desktops. That is: How do they gather the "directory" of people that others want to talk to? more

ENUM: Mapping the E.164 Number Space into the DNS

Many communications networks are constructed for a single form of communication, and are ill suited to being used for any other form. Although the Internet is also a specialized network in terms of supporting digital communications, its relatively unique flexibility lies in its ability to digitally encode a very diverse set of communications formats, and then support their interaction over the Internet. In this way many communications networks can be mapped into an Internet application and in so doing become just another distributed application overlayed on the Internet. From this admittedly Internet-centric perspective, voice is just another Internet application. And for the growing population of Voice over IP (VoIP) users, this is indeed the case... 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

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

IPv6 Now Dominant Protocol for Traffic Among Major US Mobile Providers

"Major Mobile US Networks Pass 50% IPv6 Threshold," reports Mat Ford, Technology Program Manager at the Internet Society (ISOC). more

5G (and Telecom) vs. The Internet

5G sounds like the successor to 4G cellular telephony, and indeed that is the intent. While the progression from 2G to 3G, to 4G and now 5G seems simple, the story is more nuanced. At CES last month I had a chance to learn more about 5G (not to be confused with the 5Ghz WiFi) as well as another standard, ATSC 3.0 which is supposed to be the next standard for broadcast TV. more

Taking Aim at 8 Myths about ENUM

ENUM has a critical role to play in telephony services convergence. Although many carriers are adopting ENUM there are myths swirling around the confuse newcomers. In data networks, the domain name system (DNS) is responsible for converting Uniform Resource Locators (URL's) to IP addresses in order to route data traffic. The ENUM protocol performs a similar essential function of linking E.164 telephone numbers to Universal Resource Identifiers (URIs) -- enabling communication services to use traditional phone numbers to set up calls over IP networks. Unfortunately, there's a good deal of hype and confusion around ENUM, which might lead carriers to delay ENUM implementations. That delay would be a mistake... more

Exposing 9 Myths About IPv6

This is a special two-part series article providing a distinct and critical perspective on Internet Protocol Version 6 (IPv6) and the underlying realities of its deployment. The first part gives a closer look at how IPv6 came about. This part exposes the myths.

Good as all this is, these attributes alone have not been enough so far to propel IPv6 into broad-scale deployment, and consequently there has been considerable enthusiasm to discover additional reasons to deploy IPv6. Unfortunately, most of these reasons fall into the category of myth, and in looking at IPv6 it is probably a good idea, as well as fair sport, to expose some of these myths as well. 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

What Became of the ARCOS Undersea Cable Connection to Cuba?

Cuba's primary connection to the global Internet is through the ALBA-1 undersea cable linking landing points on the south-east shore of the island to Venezuela and Jamaica; however, the bulk of Cuban traffic originates in Havana which is on the north-west coast. Traffic from Havana and other cities in the west travels over a backbone to reach the cable landing points. A landing point near Havana would reduce the load on the backbone... more