AstriCon 2010 and my talks!

NOTE: My presentations are available on my website at http://leifmadsen.com under the Presentations tab. Hey all! I’m at AstriCon 2010 in Maryland and it’s going great so far! Russell Bryant and I spoke with several keen users and developers last night in the Code Zone at a fairly late hour, which shows just how dedicated Asterisk users are. There was pretty much no one else around and we had a room of about 20-30 people just having a great discussion about Asterisk development. Read On →

Scheduling automated calls between two participants with res_calendar

Here is a little dialplan snippet I wrote this morning for the next edition of the Asterisk book. While I’m not going to delve into all the aspects of setting up res_calendar like we do in the book, I thought for those of you who might already have this working might enjoy it. (The calendaring modules are available in Asterisk 1.8, which is currently in release candidate status. Check out http://www. Read On →

Asterisk IMAP and Gmail

Today I was working on the next edition of the Asterisk book and wanted to see if I could get Asterisk IMAP voicemail support to work with Gmail. I had tried doing this a few times in the past without success, but since I had spent some time documenting and testing against Dovecot last week for another client and gotten everything working, I figured I had a good base to start trying to connect to the Gmail IMAP servers. Read On →

Interesting article about *not* tracking holidays at Netflix

The following is an interesting article about not tracking workers time spent at work, or on vacation, but rather tracking their productivity. As a consultant who doesn’t have a fixed set of hours in the day that I work, I tend to judge my productivity by the number of hours I get to bill each week (i.e. how productive was I working for customers, rather than playing Flight Simulator :)). Read On →

MindMeister: Online mind mapping

Russell Bryant just sent me a link to a neat site that allows you to do online collaborative mind mapping: MindMeister. If you’re not aware of what mind mapping software does, it is a method to quickly and easily allow you to brainstorm ideas without getting in the way too much. It works by starting from a central node and breaking out in lines from there where you start with an idea or thought, then break that thought down further with additional lines from that node. Read On →

Speaking at AstriCon 2010! Come see my talk! :)

Hey everyone! Sorry for the lack of updates recently. We’ve been hard at work on the next version of the Asterisk book, which is shaping up to be the best book ever written on Asterisk. The scope and detail we’re working towards is ambitious, but will be very much worth it. Of course the book will be focused on the upcoming Asterisk 1.8 releases (which was recently branched and betas are now available for testing! Read On →

Installing the Asterisk Test Suite

In case you missed it, I wrote an introductory article about the Asterisk Test Suite on the Asterisk blog. The post takes you from a minimally installed Ubuntu 9.10 up to the point that you can run the tests in the test suite by going through all the possible errors you might encounter getting it loaded, and how to resolve those errors (most of them being missing dependencies). Enjoy! http://blogs.asterisk.org/2010/04/29/installing-the-asterisk-test-suite/

Long-term 'shopping list' helps couple furnish Caledon townhouse

Recently, @jenspeedy of http://www.yourhome.ca interviewed my fiancée and I about our recently purchased townhouse in Caledon after our designer @melissadavis of http://www.melissadavis.ca and http://www.designerfriend.ca recommended she speak to us. Danielle (my fiancée) and I had a pretty good idea about the items we wanted for our new townhouse build, but were looking for a designer to make sure we didn’t get too far off track, and to steer us into the direction we ultimately wanted to achieve, while not breaking the bank (i. Read On →

Recent SIP Attacks from Amazon EC2

Recently (over the weekend and continuing into today) there have been several attacks from Amazon EC2 hosts running scanners looking for open SIP accounts. I’ve gathered a couple of links that I think are useful in knowing more about the attacks, along with methods of stopping the attacks. The Joshua Stein blog has a very clever way of stopping the attacks that impressed me. http://jcs.org/notaweblog/2010/04/11/properly_stopping_a_sip_flood http://www.voiptechchat.com/voip/457/amazon-ec2-sip-brute-force-attacks-on-rise/ http://www.stuartsheldon.org/blog/2010/04/sip-brute-force-attack-originating-from-amazon-ec2-hosts/ Update (2010/04/18): It seems the story has made it at least as far as Slashdot now. Read On →

Using a Nokia E71 with Asterisk (3G or WiFi)

There was some talk in one of the IRC chat rooms today about someone trying to get their E61i working with Asterisk. I haven’t had an issue getting that phone or my E71 phone working, but regardless he was having issues. I figured I might as well spend a little bit of time today going through my configuration, both for my own reference, and so that other people can get their Nokia’s setup with Asterisk as well. Read On →