I have been asked to participate in an advanced OpenSER and Asterisk integration training program. The primary goal of this project is to provide the necessary details allowing you to deploy and manage a highly scalable VoIP service using open source technologies.
We are just now starting to get organized, so at this point I […]

Asterisk VoIP News has a great article detailing how Asterisk is taking over the enterprise.
From the article:

“Some of the most compelling data that we collected was simply around the wide variety of applications that Asterisk is now being used to address,” said Terry Atwood, vice president of sales, marketing and customer care at PIKA. “Of […]

If you are new to the world of playing with SIP servers, you may not realize there are two different variations of the same basic platform. I have previously published an OpenSER tutorial however there is another SIP server called SER.
In September of 2001 Andrei Pelinescu at the Fraunhofer Fokus research institute in […]

If you are like myself, you are still running OpenSER 1.1 because OpenSER 1.2 is simply not ready for prime time abuse quite yet. I have to admit the OpenSER developers have been working very hard to stabilize 1.2. Keep up the hard work guys!
I have tracked down solutions to the following error conditions that […]

If you are just getting started with VoIP, you have found the right blog. I am committed to providing relevant content to anyone that finds it.
I have an on going series called How To Configure Asterisk. This first article in this series walks you through a typical first installation […]

I figure it is about time to upgrade the theme of my blog. I will be testing out various different themes. I also intend to change the linking structure for SEO purposes. I have been examining the various different techniques to encourage more love from the search engines. In […]

With the recent growing popularity of VoIP, it has gotten far easier for you to run your own SIP server. There are many different open-source software packages that you can download and run at your home or office.
Today I am going to discuss two solutions that you can download and have your own SIP Server […]

Today at the Interop 2007 Las Vegas Hot Stage event we discovered a strange, but explainable behavior with OpenSER.
If you start OpenSER using fork=no, TCP and TLS support will not get started even though the messages printed out makes it seem like they should be working. Unspin on IRC pointed out the fact that in […]

OpenSER is a flexible, mature and stable SIP communications server. However unlike Asterisk, OpenSER requires extensive knowledge of the SIP Protocol and presumes nothing about your configuration or method of deployment.
I am basing this configuration on OpenSER v1.1.1 which is currently considered the most ’stable’ version. Although v1.2 has been released, I am going […]

On Feb 22nd, 2007 subscribers of the OpenSER users mailing list were informed that a SER/OpenSER Configuration generator is now available.
This is an excellent tool for those looking to quickly configure OpenSER v1.1.1 for their own VoIP Services. Currently his configuration generator supports basic routing, far-end NAT traversal using either rtpproxy or mediaproxy and […]