Sean’s Obsessions

I had meant to put these up as .PDFs, but it appears ACM archives LJ articles once they go public (~30 days after the magazine comes out). Enjoy.
How to configure SIP and NAT
Expose VoIP Problems Using Wireshark

I submitted two articles to Linux Journal in December and I’m happy to see they’re both feature articles in March’s VoIP issue.
How to configure SIP and NAT
Expose VoIP problems with Wireshark
Special thanks to Bill Reid, John Lange, and Les Bester of Les.net for letting me bounce ideas off of them, and again to Les for […]

http://www.crtc.gc.ca/ENG/NEWS/SPEECHES/2006/s060929.htm
A local college radio station is being called to task for the following alleged infractions, committed over a year ago.

The examination also revealed shortfalls relating to the following three conditions of licence:
1. the licensee broadcast a level of 4.73% category 3 music instead of the weekly minimum of 5%;
[…]

I’ve got ertw.com set up to accept SIP calls, so that if you dial sean@ this domain, it rings a phone here. But, how do you dial out?
It’s actually quite easy in theory, since you can Dial() any sort of address, but the trick is to integrate it with the dialplan.
A bit of research […]

The topic of ENUM came up last night at the Manitoba Asterisk User’s group meeting. I find the discussion interesting because there are a couple of people there who are involved with the ENUM efforts by CIRA. After discussing the problems and status of ENUM-Canada efforts, I started to wonder, “Do we really […]

I wrote an article for O’Reilly’s Emerging Telephony site called Telecom Terms and Concepts. It’s all about how the existing phone system and VoIP works, how they’re the same, and how they’re different.
On another voice related note, John Lange has started up the Canadian Association of Voice over IP Providers, a sort of lobby/working […]

Many sites are reporting that Bell South wants to charge content providers to “to reliably and speedily deliver their content and services.”
It’s an interesting thought, with many good arguments for and against.
On the surface, it may appear that BS is trying to have their cake and eat it too. People using their network […]

Wanting to get away from high telephone bills, I made the jump to Primus TalkBroadband a few months ago, and what a mistake that was.
I must say it was easy to get signed up. I filled out a web page, and a little while later, I was sent a package containing my VoIP box […]

I’ve been playing with Asterisk lately, and needed to get out to the PSTN. Since I had a Cisco AS5350 with a PRI attached for incoming RAS, I figured I could use that. I also had some DIDs on the line that I could use to separate voice and data calls.
Googling around, I […]

From Slashdot comes The VoIP Insurrection. Well worth a read, especially if you need more convincing that the existing PSTN is past its prime.
Today the CRTC begins public hearings on VoIP. It’s not being televised, but they offer a live stream, albeit in Windows only format.
I look forward to hearing Jeff Pulver’s comments, […]