Using Docker to containerize Kamailio instanances
My first Pull / Merge in the Kamailio project was to fix the IMS P-CSCF config
Some of the lesser used / utilized features of the SIP REGISTER method.
Using Kamailio to send HTTP requests (POST & GET) to a HTTP server and store the result.
Running multiple instances of Kamailio on the same server using init.d
Using Transport Layer Security (TLS) to protect SIP traffic from modification / manipulation and guarantee message authenticity.
Using apt package manager to install nightly Kamailio builds
Using Ansible to automate Kamailio deployments at scale
Lessons learned about setting up VoLTE / IMS Networks at small scale.
How the P-CSCF address is assigned to a UE in Protocol Configuration Options (PCO) during bearer establishment.
Using sipcmd to test SIP Services from the command line
An update to PyHSS to support IMS Authentication for VoLTE
Using KEMI to handle Kamailio SIP Routing in Python
Using Kamailio’s UAC module to send outbound SIP REGISTER messages
The exchange between a UE and P-CSCF to put SIP traffic into IPsec encapsulated payloads.
Using KEMI to write routing logic using languages like Python, Ruby, Lua and JS
Viewing the payload of an Encapsulated Security Payload in Wireshark.
Function of Supported & Require headers in SIP.