Categories
Kamailio Python Software Voice over IP

Kamailio Bytes – Docker and Containers

Using Docker to containerize Kamailio instanances

Categories
EPC Kamailio LTE Software Voice over IP

Kamailio Proxy-CSCF Pull

My first Pull / Merge in the Kamailio project was to fix the IMS P-CSCF config

Categories
RFCs & Standards Voice over IP

SIP Register – Lesser Known Features

Some of the lesser used / utilized features of the SIP REGISTER method.

Categories
Kamailio Voice over IP

Kamailio Bytes – http_client

Using Kamailio to send HTTP requests (POST & GET) to a HTTP server and store the result.

Categories
Kamailio Voice over IP

Kamailio Bytes – Multiple Kamailio Instances on a Single Box

Running multiple instances of Kamailio on the same server using init.d

Categories
Kamailio Security Voice over IP

Kamailio Bytes – SIP over TLS (SIPS)

Using Transport Layer Security (TLS) to protect SIP traffic from modification / manipulation and guarantee message authenticity.

Categories
Kamailio Voice over IP

Kamailio Bytes – Nightly Releases the Lazy Way

Using apt package manager to install nightly Kamailio builds

Categories
Kamailio Python Voice over IP

Kamailio Bytes – Ansible for Automating Deployments

Using Ansible to automate Kamailio deployments at scale

Categories
EPC EUTRAN Kamailio LTE Mobile Networks RFCs & Standards Voice over IP

Things I wish I knew about setting up private VoLTE Networks

Lessons learned about setting up VoLTE / IMS Networks at small scale.

Categories
EPC EUTRAN LTE Security Voice over IP

VoLTE / IMS – P-CSCF Assignment

How the P-CSCF address is assigned to a UE in Protocol Configuration Options (PCO) during bearer establishment.

Categories
Voice over IP

Automated SIP testing with sipcmd

Using sipcmd to test SIP Services from the command line

Categories
RFCs & Standards Voice over IP

SIP SIMPLE – Instant Messaging with SIP

A look into Instant Messaging using SIP

Categories
EPC EUTRAN LTE Mobile Networks Python RFCs & Standards Software Voice over IP

PyHSS Update – IMS Cx Support!

An update to PyHSS to support IMS Authentication for VoLTE

Categories
Kamailio Python Voice over IP

Kamailio Bytes – Python + SIP with KEMI

Using KEMI to handle Kamailio SIP Routing in Python

Categories
Kamailio Voice over IP

Kamailio Bytes – UAC for Remote User Registration to external SIP Server (Originating SIP REGISTER)

Using Kamailio’s UAC module to send outbound SIP REGISTER messages

Categories
Kamailio Voice over IP

Kamailio Bytes – SIP UAC Module to act as a UAC / SIP Client

Using Kamailio UAC module to send a SIP Text Message (MESSAGE) to an administrator when a user dials an emergency services number.

Categories
EPC EUTRAN LTE RFCs & Standards Voice over IP

IMS / VoLTE IPsec on the Gm Interface

The exchange between a UE and P-CSCF to put SIP traffic into IPsec encapsulated payloads.

Categories
Kamailio Python Voice over IP

Kamailio Bytes – KEMI Intro

Using KEMI to write routing logic using languages like Python, Ruby, Lua and JS

Categories
EPC EUTRAN LTE Security Voice over IP

Using Wireshark to peer inside IPsec ESP VoLTE data from the P-CSCF

Viewing the payload of an Encapsulated Security Payload in Wireshark.

Categories
RFCs & Standards Voice over IP

SIP Supported & Require

Function of Supported & Require headers in SIP.