Kamailio 4.2.3, Update from git

Kamailio 4.2.3 has been released.

Kamailio SIP Server v4.2.3 stable is out – a minor release including fixes in code and documentation since v4.2.2 – configuration file and database compatibility is preserved.

So, if you’re updating from git, the simple way to update is:

  1. cd /usr/local/src/kamailio-4.2/kamailio (or your kamailio directory)
  2. git pull origin
  3. make all
  4. make install
  5. /etc/init.d/kamailio restart

Problems? I had one…

When I ran the git pull origin command, I kept receiving the error fatal: read error: Connection reset by peer.

I switched to the repository on github, and all worked:

  1. cd /usr/local/src/kamailio-4.2/kamailio
  2. git remote set-url origin
  3. git pull origin
  4. make all
  5. make install
  6. /etc/init.d/kamailio restart

You can see your current url by running git remote -v.


Private Conversations should be Private

It’s a crazy concept…

I feel that liberty allows us to communicate free from government interference. Whether this be business, personal, religious, or any other type of communication… our freedom of speech entitles us to freedom from monitoring our speech as well.

With information from Edward Snowden (and now William Binney), we should be very concerned over the level of interference, eavesdropping, and surveillance conducted against all society.

William Binney recently stated that the ultimate goal of the NSA was total population control.

This should concern you an you’ve been warned about this before.


Kamailio World 2014

Sadly, I did not make Berlin this year to attend Kamailio World — something I hope to correct in 2015.

If you, like me, are unable to attend… there are technological tools to lessen our loss:

Don’t know about Kamailio? Read why I love it.


Why I Love Kamailio

If we haven’t met yet, my name is Fred Posner. By day, I’m a VoIP Engineer and a baker (yes, a baker).

Since I was a kid, I’ve loved telephones — everything about telephones. Dealing with phone companies and carriers started to eat away at that love… but VoIP brought it back.

One of the products I get to work with is Kamailio.Many of you have never heard of this product.

Even more cannot pronounce it.

In a nutshell, Kamailio is an open-source SIP server. Now, if you’re not a techie, or know VoIP, then…

Kamailio is about communication.


The word Kamailio originates from the native Hawaiian language; translating “to converse.” Kamailio is open-source software allowing people (great, huge amounts of people) to communicate.

Now, back to why I love Kamailio


Kamailio Behind NAT

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: 


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.


OpenCNAM for Asterisk cidnam lookup

Long ago, in a world much different from today, one could check, 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.


FreeSWITCH 1.2 Book Review

freeswitch book

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.


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.



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

» Read the blog post at VoIP Tech Chat