First HD Conference In Asterisk!

Today Russell Bryant and I had the first public HD conference using Asterisk! There had been other testing done by Malcolm Davenport and David Vossel (who is the developer working on this integration) internally, but this was the first public HD enabled conference using Asterisk (as far as I’m aware). It worked really well! People were able to join in, and those who were calling in via G722 were able to hear each other in wideband, while the other people in the conference who were using narrowband codecs like GSM and ulaw didn’t hear any difference in the audio from the participants. Read On →

Initial impressions of qemu-kvm (virtualization server)

The qemu-kvm (http://www.linux-kvm.org/page/Main_Page) package on Ubuntu 10.10 allows you to create virtual machines much like VMware, Xen, etc. My initial impressions are generally pretty positive. I like that it lets you install multiple operating systems (including MS Windows, which I haven’t tried yet), and doesn’t use a web interface like VMware Server 2 (which I’ve found to be terribly crash prone, requiring a restart of the web interface at the least, and sometime the entire server needs to be restarted, often abruptly with the kill application). Read On →

Asterisk Cookbook Is On! (We Think :))

After finishing the first draft of Asterisk: The Definitive Guide (3rd Edition), I’ve been a bit antsy with wanting to do some more writing. After about a week of a break (i.e. sleeping in past 7am for the first time in nearly a year), Russell Bryant and I have decided to team up on delivering the long awaited Asterisk Cookbook. To start off with, we’ll be writing a short, 80-100 page eBook that will be distributed by O’Reilly in all the formats they support (http://oreilly. Read On →

Asterisk: The Definitive Guide, First Draft Complete!

Today we marked the finishing of Asterisk: The Definitive Guide (3rd Edition) by sending the first draft off to the O’Reilly production team. We finished nearly on schedule (within a few days, which is remarkable considering we added 150 more pages than originally intentioned) and have our favourite copy editor Rachel Head (formerly Wheeler) who did the first edition of Asterisk: The Future of Telephony who we emphatically enjoyed working with. Read On →

Asterisk: The Definitive Guide -- Call For Reviewers!

Here is the text I posted to the asterisk-doc mailing list this morning. You can sign up for asterisk-doc at http://lists.digium.com and get involved! We’d love to make this the best book on Asterisk ever, and your input can make that true! Our goal is to build a book for, and by, the Asterisk community. “_Hey all! _ _We’re getting VERY close to having the first draft of the next Asterisk book, Asterisk: The Definitive Guide ready to be sent off to production. Read On →

2010 in review

The stats helper monkeys at WordPress.com mulled over how this blog did in 2010, and here’s a high level summary of its overall blog health: The Blog-Health-o-Meter™ reads Wow. Crunchy numbers A helper monkey made this abstract painting, inspired by your stats. About 3 million people visit the Taj Mahal every year. This blog was viewed about 39,000 times in 2010. If it were the Taj Mahal, it would take about 5 days for that many people to see it. Read On →

Update for Asterisk: The Definitive Guide (3rd Edition)

It’s been a while since I’ve done an update on my blog, but that’s just because we’ve been so busy at work on the next edition of the O’Reilly published Asterisk book! Asterisk: The Definitive Guide is the next update to the Asterisk: The Future Of Telephony books and is thus the 3rd edition. We’ve changed the name for two reasons: 1) This is pretty much a complete re-write of the book based on Asterisk 1. Read On →

Video of '5 Things You Didn't Know Asterisk Could Do' Presentation Now Available

Check out the AstriCon website for my presentation that was recorded this year. I did three presentations this year (5 Things You Didn’t Know Asterisk Could Do, Distributed Call Centres, and the Asterisk Project Update with Russell Bryant) but unfortunately the only one I see so far is the 5 Things presentation (which is a very good presentation! :)) The link to the presentations are here: http://www.astricon.net/videoPresentations.aspx#Digium7 with mine being at the top of the list. Read On →

My Presentations from AstriCon 2010 are Available

Check out http://leifmadsen.com and click on the presentations tab. Under that tab you will find my presentations from AstriCon 2010, ’5 Things You Didn’t Know Asterisk Could Do’ and a slightly updated version of my ‘Building Distributed Queue Systems’ presentation. Both are in PDF format. Both presentations went over extremely well, and I think both probably ended up being, or nearly being, my best presentations ever given. In previous years I’ve given presentations on distributed Asterisk systems and last year at IT360 I gave my ”5 Things You Didn’t Know Asterisk Could Do” presentation, so perhaps being somewhat familiar with the format helped. Read On →

Wow, lost ticket recovery for VIA Rail is pretty much garbage

Here is the response I got from VIA Rail for a lost ticket, which was printed off at the time of departure for my return trip. Why they insist on printing the return ticket the time of departure I don’t know, but how ridiculous is this? “VIA Rail will not issue a free ticket against a lost or stolen ticket being reported. Customers are required to purchase a new ticket at the original fare and complete a Lost Ticket Indemnity Bond. Read On →