Tag Archives: SBC

SIP: Looking Behind the Curtain

Are you coming to Enterprise Connect in March?  If so, here are a few reasons why you want/need to attend my ever-popular SIP session. SIP:  Looking Behind the Curtain Advertisements

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 […]

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 […]

Where Have all the SBCs Gone

A few weeks ago, I wrote the first of my teaser articles for the Enterprise Connect 2016 session, Understanding and Leveraging SIP for Your Enterprise. Admittedly, it was pretty nerdy and protocol intensive, and while I will certainly be delving into the low level aspects of SIP during my EC16 presentation, I plan on doing […]

High Availability Session Border Controllers Down and Dirty

Any subject worth learning is like an onion. No, not because it will make you cry (although some sure bring out the tears for me). Rather, it’s because a worthwhile subject consists of multiple layers and every time you think you completely understand the whole thing, you find something new to capture your time and […]

Peeling Back the SIP Resiliency Layers

Like most people, I like it when my machines work. If I get into my car and turn the key, I expect the engine to start and the tires to roll. Of course, I play an important role in keeping my Prius on the road. I follow the manufacturer’s recommended maintenance schedule. I keep the […]

The VPN is Dead…

My job used to be a place I went to.  If my car broke down, I didn’t work.   If the roads were too icy to drive on, I didn’t work.  If I had to stay home waiting for a repair person, I didn’t work.  I suppose I could have sat down with a pad of […]

SIP Security at Converge2015

When you think about security in terms of SIP and VoIP, you need to consider four different areas.  First, you want to protect the SIP signaling.  Second, you need to protect the media stream.  Third, you need to ensure that people are who they say they are.  Lastly, you need to create a secure network […]

A Deep Dive into Logging Out a SIP Client

It’s said that all good things come to an end. At the same time, I’ve heard that there are no ends — just new beginnings. No matter how you see it, life is full of changes and very few things last forever. That’s certainly true in the world of communications. There is no lack of […]

Multiple Registration and Call Forking With SIP

In legacy telephony, everything revolves around hardware. There is the telephone receiver you hold in your hand and the buttons you press to make calls. The telephone is connected back to a central brain by one or more dedicated wires. Those wires eventually connect the telephone to a line card that feeds signals into a […]