The SIP JDBC Registrar Example is JAIN SLEE 1.1 Application which handles incoming SIP REGISTER requests. Depending on message content, it performs registrar routines and respond to UAC with proper message.

3.1. Example Components

Example consist of following components:

SIP Registrar Sbb

Is entry point of examples service. It consumes REGISTER requests and issues calls to its child SBB in order to perform specific operations on data storage, ie. fetch contacts for particular AOR. It performs partial validation of REGISTER requests.

DataSourceChild SBB

Is responsible for performing operations on persistent data store. It exposes operations which allow other SBBs to fetch, remove or udpate AOR contacts.

RegistrarConfiguration

Is a simple JMX bean which exposes configuration parameters used in registrar routines to check if message has correct content.

Root SBB of service is SIP Registrar SBB, which receives messages as first. Relation between SBB s look as follows:

SIP JDBC Registrar Example components relations

3.2. Registrar and Datasource Operations

To better understand source code, it is required that you are familiar atleast with general design of examples service. Below you can find a diagram which depicts general call flow in example:

SIP JDBC Registrar Example call flow