Categories
VoIP

Kamailio Behind NAT

Kamailio
Kamailio 4

After returning home from AstriCon 10, I decided to start-up a new server and see how long it would take me to run a working Kamailio server behind NAT (on a private IP). Bottom line? About 30 minutes.

I was lucky to help staff the Kamailio booth this year and was honored to help so many other VoIP professionals (and enthusiasts) with their questions about Kamailio, so without further ado…

What is Kamailio?

Kamailio (OpenSER) is an open source SIP server capable of handling thousands of call set-ups per second. Some amazing features include: 

Categories
VoIP

Asterisk (The Definitive Guide) 4th Edition Review

Asterisk Definitive Guide
Asterisk Book

Ah, the power of Twitter. When I posted a review of the new FreeSWITCH book, a got a tweet from Leif Madsen (@leifmadsen) asking if I wanted to review the new Asterisk book. Absolutely!

Of course, if you remember my FTC disclosure

If I get something for free and I write about it, I guarantee it will not influence my opinion. I’ll write my true opinion.

Categories
VoIP

OpenCNAM for Asterisk cidnam lookup

Long ago, in a world much different from today, one could check 411.com, anywho, and even google for Caller ID names. Those days are gone my friends. It’s slowly becoming a pay to play world…

I just played with a solution from OpenCNAM that was pretty freaking simple. There’s a negativeit ain’t free. The cost is nominal… $0.004/lookup. That means that $10 will get you 2500 lookups.

Categories
VoIP

FreeSWITCH 1.2 Book Review

freeswitch book
FreeSWITCH

I’ve recently read the new FreeSWITCH Book from Packt Publishing. I’ve ordered a few books from them in the past (FreeSWITCH 1.06, FreeSWITCH Cookbook, OpenSER, etc) and generally find them to be a great source for open source software.

Before I begin… You know how in my FTC Disclosure I say…

If I get something for free and I write about it, I guarantee it will not influence my opinion. I’ll write my true opinion.

Categories
VoIP

Kamailio Consulting

There are some great consultants to help you with Kamailio— I just happen to be one of them. =) =)

In all seriousness, if you’re looking to implement or integrate Kamailio into your network, give me a call. Or, for more information click here.

Categories
VoIP

Blogged…

I actually blogged today, on VoIP Tech Chat about Sprint’s 4G “Coverage.” =)

» Read the blog post at VoIP Tech Chat

Categories
VoIP

Hi. My name is Fred, and I'm a Kamailian.

I got thrown into VoIP in a sink or swim situation — and thankfully, I’m a strong swimmer. I’ve talked previously about my love of phones. Growing up in New York City, my family would purposely avoid walking on certain blocks to avoid me seeing pay-phones. As a child, I loved phones. I still love phones.

My love of phones made me what I am today. I am a Kamailian. 

Categories
VoIP

Geeky Item of the Day – Free CNAM

Ok, if you use Asterisk (or a Do It Yourself type VoIP service), you sometimes do not receive the CNAM (think Caller ID with Name data) from your carrier. Well, since geeks like information and anything “free,” there’s a simple way to use the internet to do a reverse number lookup query. So, if you’re a technical type, keep reading… otherwise, non-geek posts will return very soon.

Categories
esposa VoIP

Geeky Item of the Day

Yeni Weather Script
Yeni Weather Script

I have a new phone on my desk (or as Yeni calls it, the mesk). Why mesk? Combines messy and desk… but I digress (as usual).

As I was saying, I recently purchased a Polycom Soundpoint IP 450 phone. The phone is great — small foot print, clean, great speakerphone, and enables HD Voice. HD Voice is going to change the way we think of how phone calls sound. I admit, I was reluctant at first, but then I got to know Michael Graves; and after listening to him praise the benefits of HD Voice for many, many months, I decided it was time to embrace the technology.

Let me say this — HD Voice is amazing. I won’t say too much more, because I’m planning to write about it big time on VoIP Tech Chat and Team Forrest; but bottom line: HD Voice = amazing.

So the other nice thing about the phone? It has a little micro-mini browser. Which means what you ask? It means that know whenever Yeni asks me the weather… I can answer. A nice little Perl script checks the local Ann Arbor weather and gives me the temp (in F and C), current condition, and quick day’s forecast. The phone reads the website every 5 minutes and constantly displays the results. It’s nice. 🙂