Category Security

Real-Time Voice Protection with SBC Guard

Without continual growth and progress, such words as improvement, achievement, and success have no meaning. Benjamin Franklin As most of my readers know, I began this blog writing about the specifics of the Session Initiation Protocol (SIP).  In fact, for the longest time I called this site SIP Adventures and filled these pages with scores […]

VoIP Security in a Time of War

“You cannot choose your battlefield,God does that for you;But you can plant a standardWhere a standard never flew” Nathalia Crane Just when the stress of the pandemic was starting to ease and it looked as if the world might return to some sense of normal, we suddenly find ourselves on the cusp of World War […]

Best Practices for SIP and UC Security

I had the honor of being asked to present three breakout sessions at the Avaya Engage virtual conference.  While I prefer presenting in front of a live audience, COVID has taught me that flexibility is paramount. Although this wasn’t the smoothest performance of the three (I got better with each recording), I am very pleased […]

The Four Pillars of Communications Security

I have been working with IP technology for a long time. I can’t tell you the exact year of my first exposure, but it was sometime between 1985 and 1987. I was working at Northern Telecom as a software developer and was tasked with adding a TCP/IP stack to a version of Unix that ran on a Motorola […]

Deploying VoIP Security the NSA Way

In my latest guest blog post for Assertion, I take a look at the NSA guidelines for securing VoIP and UC.  I learned a few new tricks and expect that you will, too.  Take a look at let me know what you think about it. Deploying VoIP the NSA Way

Securing Your SBC the Assertion Way

I live in a gated community, but I still lock my doors. My LinkedIn connections may have noticed that I list two current jobs.  My day job is Client Experience Innovations at Avaya.  That’s a fancy way of saying that I am paid to dream up and prototype new ways for people to connect and […]

Taking the Bite Out of a SIP Hacker

“Never let the same dog bite you twice.” Chuck Berry Before I discuss securing SIP, I want you to imagine a bank.  Every bank I know has a sturdy door equipped with a good lock and some form of alarm system.  Inside the bank, it’s not uncommon to have a trained security guard.  The tellers […]

Thinking Holistically about SIP Security

Every so often I am asked to write an article for a blog other than my own.  I usually respond with “no.”  There are only so many hours in the day and those few are already over-scheduled without taking on additional work.  However, I said “yes” to this one.  After all these years, I still […]

Attention, Vigilance: Securing Your SBC the Right Way

I finished my third and final (for now) No Jitter article about SIP security.  This time I take a look at what should be done at the SBC.  If you are serious about security, and you should be, please take a look. Attention, Vigilance:  Securing Your SBC the Right Way

Enhancing Security with TLS 1.3

I am on a bit of a writing roll right now and published yet another article in No Jitter.  Continuing with last week’s discussion on SIP security, I take a look at TLS 1.3.  While that may seem nerdier than you want, it’s important for you to at least have a passing knowledge of what […]