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Kamailio Python Voice over IP

Kamailio Bytes – Python + SIP with KEMI

Using KEMI to handle Kamailio SIP Routing in Python

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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

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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.

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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.

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Kamailio Python Voice over IP

Kamailio Bytes – KEMI Intro

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

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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.

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RFCs & Standards Voice over IP

SIP Supported & Require

Function of Supported & Require headers in SIP.

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EPC Kamailio LTE

Kamailio Bytes – Configuring Diameter Peers with CDP

Introducing C Diameter Peer module in Kamailio to manage Diameter Peers, monitor their state and handle the connections.

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Kamailio Software Voice over IP

Kamailio Bytes – Dispatcher States

AP, IX, IP & DX – The meaning of Dispatcher states in Kamailio’s Dispatcher module.

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Kamailio Software Voice over IP

Kamailio Bytes – Rewriting SIP Headers (Caller ID Example)

Stateless Kamailio SIP proxy example for changing Caller ID values

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EPC EUTRAN LTE Mobile Networks Security Software Voice over IP

VoLTE/IMS Debugging on Samsung Handsets using Sysdump & Samsung IMS Logger

Unlocking the built in IMS Debugging tool in Samsung’s Sysdump Utility

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Australian Telco RFCs & Standards Voice over IP

Anatomy of Local Number Portability in Australia

What goes on in the background with Local Number Porting in Australia

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EPC EUTRAN LTE Mobile Networks RFCs & Standards Voice over IP

The case for Header Compression in VoIP/VoLTE

Robust Header Compression (ROHC) and it’s use for compressing RTP / VoLTE traffic headers.

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Kamailio Voice over IP

Load Testing with SIPp

SIPp (a performance testing tool for SIP) to simulate many concurrent calls leading to many concurrent transcoding sessions.

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Kamailio Voice over IP

Kamailio Bytes – DMQ

Using Kamailio’s Distributed Message Queue to share memory data between Kamailio nodes

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Kamailio Voice over IP

Kamailio Bytes – Transaction Module

Some TM (Transaction Module) use cases in Kamailio

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Kamailio Voice over IP

Transaction Stateful Proxy with Kamailio

Basic example of a Transaction Stateful SIP Proxy in Kamailio

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RFCs & Standards Voice over IP

SIP SDP – ptime

SDPs ptime values, what it means, how it can go wrong and how to fix it.

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Asterisk Kamailio Voice over IP

Kamailio vs Asterisk

Comparison on Asterisk and Kamailio and where they fit in the Telephony landscape.

Categories
Kamailio Voice over IP

Kamailio Bytes – SDP Manipulation with SDPops

Manipulating SDP with Kamailio