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: 


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.