An investigation into the provision of video conference capabilities in iLanga Supervisors: Alfredo Terzoli and Peter Clayton Fred Otten Student Number: 605O5894

Outline Demonstration Why Asterisk? Statement of problem What I hope to achieve What is SIP. Example What Next?

Why videoconferencing with Asterisk Use different protocols seamlessly Use advanced PBX features such as call forwarding, call parking, etc.

Demonstration Demonstration of SIP video via Asterisk

Statement of Problem Channel-based architecture of Asterisk provides a means to bridge the transport of voice between various protocols In principle the architecture should allow the transport of video with relative ease

What I hope to achieve “Video conferencing” using the SIP channel and the ISDN channel Understanding of the structure, and its limitations and further extensions

What is SIP? It is a client-server protocol which is designed to establish, modify and terminate sessions Test based protocol similar in both syntax and semantics to the HTTP and SMTP protocols. Requests and responses are both textual Makes minimal assumptions about the underlying transport protocol, but usually runs on top of UDP

Basic Example of setting up a session using SIP

Whats next? Adding call transfer and parking to the iLanga user interface

Questions ?