Category Security

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 […]

The Great SIP Security Challenge

After taking a too-long break from No Jitter, I am back in the saddle again.  Please check out my latest article. The Great SIP Security Challenge

Security, Security, Security

“If you have built castles in the air, your work need not be lost; that is where they should be. Now put the foundations under them.” — Henry David Thoreau During this time of unemployment, I have more free time than I care for. While I wouldn’t necessarily call myself a workaholic, I do like […]

SIP Certificates for Avaya Endpoints

As busy as I am these days, I have a hard time saying “no” when asked to write something for what I deem to be a worthy publication.  Case in point is the article on SIP Certificates that I wrote for IAUG Insights.  “Flip” to page 22 to find me. IAUG Insights