Monthly Archives: September 2014

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The Great SIP History-Info Battle

Do you remember that scene from the movie The Wizard of Oz where Dorothy comes to the fork in the yellow brick road and the Scarecrow points her in both directions at the same time? Dorothy: Are you doing that on purpose or can’t you make up your mind? Scarecrow: That’s the trouble. I can’t […]

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Contextual Communications — Ranking Interruptions

Would it be useful to know the subject of a telephone call while your phone is still ringing? Do you require more than a name and a number to decide which call is important and which one is not? Don’t you wish that telephones came equipped with a priority light? In my latest article for […]

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An Introduction to the SIP Diversion Header

We all want to think that we are unique in some way and I expect that most people can find a few things about themselves that are different from the people around them. Sometimes those differences can be life defining. Take a look at most great basketball players and tell me that their height wasn’t […]

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Dealing with the Unknown Unknowns of Communications Technology

In my latest article for No Jitter, I explore some of the unknowns of communications systems and how you might turn them into knowns. It was a fun piece to write and I hope you find it fun to read. Dealing with the Unknown Unknowns of Communications Technology

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SIP Vicious (Hey Hey, My My)

Despite the fact that I was an impressionable young college student during the height of the punk rock movement, I was never much of a fan of the genre. While I enjoyed a few songs by the Clash and some of the more obscure punk bands like Eddie and the Hot Rods (yes, they were a […]

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Understanding Avaya Media Gateway Survivability

Writing this blog serves two purposes. First, I love having the opportunity to play unified communications professor. I have been in this industry for a long time and I truly enjoy sharing what I’ve learned about telephony, SIP, WebRTC, and VoIP in general. Second, I find that I don’t really understand something until I am […]

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Communications Security: Covering the Bases

If you are responsible for managing a communications systems and you aren’t thinking about security, you aren’t thinking. In my latest article for No Jitter, I write about a number of security concerns and offer up a few ideas on how to address them. Communications Security: Covering the Bases

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A Practical Guide to Audio Codecs

I must be a glutton for punishment. It’s hard enough finding time to write this blog, but I volunteered to write for No Jitter, as well. However, being the practical guy that I am, I can share that content here and tend to both blogs at the same time.  Am I smart or what? This […]

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Writing Your First WebRTC Application: Part Four

Welcome to the final installment of Writing Your First WebRTC Application. I covered quite a bit of ground in my first three articles and it’s time to wrap this up with some examples of useable WebRTC code. I applaud those of you that stayed with me as I’ve dug into some pretty complicated stuff. This […]