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For many in the Voice over IP world, Session Initiation Protocol (SIP) is the holy grail. Once it is accepted by every vendor and manufacturer, it will enable every IP-based device and application to communicate with one another. But for now it remains still a bit of an enigma that raises a large number of questions for everyone. TechTarget offers a VoIP SIP fundamentals guide discussing some of the basics of SIP -- its vulnerabilities, testing and hardware. more
The term "last mile" highlights the fact that we are the consumers at the end of a broadband "pipe". Saying "first mile" is a little better but the Internet is not a pipe to or from somewhere else. It's about what we can do locally and then what we can do when we interconnect with other neighborhoods. It's better to describe our neighborhood as the first square mile. Telecom is about selling us services; the Internet is about what we can do ourselves locally and then interconnecting with others everywhere. In writing the First Square Mile - Our Neighborhood essay which I just posted I came to better understand the fundamental difference between the world of telecom which is about giving you choices and the Internet which provides opportunity to discover what we can't anticipate... more
Google has launched a new Public Policy Blog focused on U.S. government legislation and regulation -- reported in the media as part of Google's efforts in setting up focus on the U.S. government since early 2005. In an entry posted over the weekend on the blog by Richard Whitt, Washington Telecom and Media Counsel, key argument within the net neutrality debate is explained... more
Previously, I've written about how the success of the MVNO (though not without its problems) demonstrates how an Open Access-like business model can work in a wireless context. The underlying carrier, such as Sprint or Verizon, can sell access to its network at wholesale rates to a company like Virgin Mobile, which then markets to consumers. This model can be and is a success both for the retailer and the wholesaler. MVNOs are not perfect. more
Today's Wall Street Journal had an interesting article (subscription required) on the current state of the wireless walled garden. It cites several recent clashes between handset vendors and cellcos over the extent to which consumers can use their phones to access non cellco content. From the article: "At stake for consumers are what services will be available on their mobile phones and whether they're free or cost a monthly fee. The wireless Web is taking off more slowly in America than overseas, and one reason is that U.S. carriers tightly control what applications are available on mobile devices..." more
I've been involved with VoIP technology since 1996. I've been a public advocate for wideband audio at least since 1997. And I've admired and supported a variety of companies using VoIP to provide innovative services and new user interfaces. But reflecting on the past decade, the only globally significant impact of VoIP has been on prices (by fostering arbitrage). Most VoIP telephony services are just digital POTS... more
A friend who read my Creating Sustainable Network Neutrality paper wrote to say, "Help me understand what is so bad about treating different types of communications differently." That's a really good question! If you want to offer vertically integrated services on special purpose networks, such as video entertainment or pager service or telephony, I do not have a problem with that, provided you don't use your market power to impede Internet applications that offer competing services... more
Since Skype has an open client-side API, why not use it as a transport to tunnel VPN traffic and blow through firewalls to connect you to a remote system? That's the idea raised by Peeter P. Mõtsküla in his Skype Developer Blog entry: "Idea: skypetunnel". For instance, have a Skype client running on your home machine logged in as one account. Have Skype on your laptop on another account. Initiate a connection between the two of them and wind up with secure, encrypted access through the firewall from wherever you are. Being peer-to-peer, there would be no central servers or infrastructure required (outside the usual Skype p2p cloud.) This would require, of course, a yet-to-be-created "extra" that connected into the Skype client API and was installed on both systems...but that was the point of the article... more
I ought to explain why I've suddenly gone cold on VoIP. It's just I've watched my own behaviour. I've grown tired of the inconsistency of PC VoIP calls, and instead I've reverted to using landlines, mobiles and Jajah (for callback). But I'm still using IM to set up many of those calls! The problem isn't unique to any one client - they're all proving unsuitable for business use with clients (which is most of my telephony needs covered). The worst of all seems to be Skype conference calling... more
With my post earlier this month about the possibility of SIP botnets [also featured here on CircleID], I've had a number of people asking about more information and wondering about the possible impacts. And while I will write more on botnets in general, as far as the potential impact of "botnets" in general, one need only look over at the current situation in Estonia... Now, perhaps Russia is behind the attack... perhaps not. There are obviously much larger political issues going on between the two states. more
So this afternoon my charge is to lay out all the Net Neutrality (NN) issues to a bar association that doesn't have a telecom subcommittee... Cringely says that "In the end the ISPs [network providers] are going to win this [network neutrality] battle, you know. The only thing that will keep them from doing that is competition, something it is difficult to see coming along anytime soon..." more
A recent article chronicles the telcos' slow start in cable TV. I don't think the telcos stand a chance of succeeding in cable TV. Instead, if they're to succeed at all, they'll probably buy or form alliances with existing cablecos... But they'd better start swimming, because the times are a changing.. more
Fergie replied on NANOG to my recent post on the subject of broadband routers insecurity: "I'll even go a step further, and say that if ISPs keep punting on the whole botnet issue, and continue to think of themselves as 'common carriers' in some sense -- and continue to disengage on the issue -- then you may eventually forced to address those issues at some point in the not-so-distant future..." He is right, but I have a comment I felt it was important - to me - to make. Not just on this particular vulnerability, but on the "war"... more
In this post I'd like to discuss the threat widely circulated insecure broadband routers pose today. We have touched on it before. Today, yet another public report of a vulnerable DSL modem type was posted to bugtraq, this time about a potential WIRELESS flaw with broadband routers being insecure at Deutsche Telekom. I haven't verified this one myself but it refers to "Deutsche Telekom Speedport w700v broadband router"... more
A story... ZZZ Telemarketing (not a real name) is locked in a heated fight with their bitter rival, YYY Telemarketing (also not a real name), to win a very large lead generation contract with Customer X. Customer X has decided to run a test pitting the two companies against each other for a week to see who can generate the most leads. The ZZZ CEO has said to his staff that it is "do or die" for the company. If they fail to win the contract, they will have to shut down -- they need to do "whatever it takes" to win over YYY. A ZZZ staffer discovers that part of why YYY has consistently underbid them is because they are using SIP trunks to reduce their PSTN connection costs. But the staffer also discovers that YYY is using very cheap voice service providers who run over the public Internet with no security... more
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