Category Session Border Controller

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 […]

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 […]

Why Do You Need a Session Border Controller

SIP has been around since the late 1990’s, but confusion still exists regarding what it is and what it can do.  Most old school telephony people realize that it changes the way we make voice and video calls, but after that their understanding is sketchy. The bewilderment surrounding SIP is often greatest when it comes […]

Planning a Successful SIP Trunk Migration

I keep getting asked to guest blog post about SIP and I just can’t seem to say “no.”  If you are planning a SIP migration or want to tune your existing configuration, this is the article for you. Planning a Successful SIP Trunk Migration

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

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 […]

SBC ABCs…and Then Some

And now for something completely different.  I recently sat down with Beth Schultz to talk SBCs for the No Jitter On Air series of Podcasts.  We start with the “motherhood and apple pie” of SBCs before looking at how they are evolving and where they might be in a few years. SBC ABCs…and Then Some […]

Death and SIP Taxes

The wages of sin are death, but by the time taxes are taken out, it’s just sort of a tired feeling. — Paula Poundstone There are very few things in life that I truly hate.  Yes, there is much that I very much dislike, but hate is such a strong word that I like to […]

With SBCs, Little Things Matter

I try to do the right thing at the right time. They may just be little things, but usually they make the difference between winning and losing. — Kareem Abdul-Jabbar I’ve been married a long time, and if I’ve learned one big lesson these past 34+ years, it’s pay attention to the little things.  For […]