Core SIP Library

---

Detailed Description

The PJSIP Core library only provides transport framework, event dispatching/module framework, and SIP message representation and parsing. It doesn't do anything usefull in itself!

If application wants the stack to do anything usefull at all, it must registers Modules to the core library. Examples of modules are Transaction Layer and SIP User Agent Module.

Table of Contents
	Base Types
	Basic PJSIP types and configurations.
	At the Very Core
	The very core of PJSIP.
	Messaging Elements
	Various SIP message elements such as methods, headers, URIs, etc.
	Transport
	This is the transport framework.
	SIP Authorization module
	Client and server side authentication framework.