VoIP

FreeNum Links Phone Numbers to the Internet

I loved John Todd's ETel presentation (podcast) on FreeNum, a scheme for bringing phone numbers to the Internet. Of course, I love identifiers and addresses and all that they enable, so it was a natural. Suppose you were a university campus and when you looked at your phone bill, you noticed that a lot of calls were to other universities. You've got a VoIP telephone system; they've all got VoIP telephone systems. You might wonder "isn't there some way to route these calls over the Internet and save some serious money?" The answer, of course is "yes" but making it usable is a little harder...

Rent vs. Buy: The Driver of Economics

We the people like to own stuff and not pay rent to use it (BTW, rent includes taxes but that's another story). They the oligarchs like to own the stuff and charge us rent to use it. The rise of a middle class has historically meant the rise of a property-owning class. The underclass pays exorbitant rents. The telecommunications world -- or at least the US part of it -- is a battle of rent vs. buy. Economics says that ownership or rentership is all based on access to capital. Certainly capital is a huge part of the equation -- can you spell "home loan"?; but it's not the whole story...

Understanding the Skype Outage

Skype's official explanation. Phil Wolff has a good set of interpolated comments on the official explanation. There are two things to add... As the Register points out, last Tuesday was Microsoft's monthly patch day and those patches required a re-boot. If we believe Skype that their problem started with excessive login attempts, this is the only plausible explanation on the table...

CALEA Roundup: 2005-2007

The wrangling around the Communications Assistance to Law Enforcement Act (CALEA) is one of those issues that creeps inexorably forward and is hard to follow unless you're really focusing. So here is a quick, if longish, overview: CALEA is a 1994 statute that requires telephone companies to design their services so that they are easily tappable by law enforcement in need of "call-identifying information." Back in August 2005, following a request from the Dept. of Justice, the Commission moved swiftly to impose CALEA obligations on providers of broadband access services and "interconnected VoIP" services...

Google Acquires Grandcentral… and Enters Further into the PSTN Side of Telecommunications

News breaking out today is that Google has acquired GrandCentral for something around $50 million. GrandCentral is a service that gives you one phone number that can ring multiple numbers, provide one common voicemail - and all sorts of the other features (see "howitworks" for a list of features)... So will we ultimately see voicemail inside of Gmail? One would assume that we will eventually see integration with GoogleTalk...

SIP, the Holy Grail of VoIP World

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.

CAN SPAM Applies Even Within a Single Provider

I recently came across a copy of a ruling in the bizarre case of MySpace vs. theglobe.com. Theglobe.com was the ultimate dot.com bubble company. It started up here in Ithaca, and went public at the peak of dot.com hysteria with one of the the greatest one-day price runups ever. Since then they bought and sold a variety of busineses, none of which ever made any money, including the Voiceglo VoIP service which appears to be what the spam was promoting.

VoIP: Beyond Digital POTS

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...

Skype as a Platform for Secure VPN Tunnels?

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...

Frustrations with VoIP Phone Services

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...