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

What is Asterisk? “flexible and extensible suite of intergrated telecommunications software that can be molded to suit any particular application, or collection of applications” Goal is to support every possible telephony technology Acts as a middleware

Features of Asterisk Telephony applications such as: –Call bridging –Conferencing –Call parking –Call forwarding Will be useful to me, as these facilities will be available to the video channels.

iLanga Main components –Asterisk –SIP Express Router (SER) –OpenH323 Gatekeeper (OpenGK)

iLanga SER and OpenGK were added to increase functionality for the SIP and H.323 clients

Statement of Problem Channel-based architecure 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 will do Investigate the channel structure for voice transmission and gain a deep understanding of how the channel architecture operates From this build an adapter to allow video transport

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

Further Extensions Video on demand (streaming) for all terminals using Asterisk Channel for Analogue video system, which would ensure Legacy compatibility Others relating to the channel structure (will become clearer as the project takes form)

Current situation Doing research into the structures Developing web page Will be soon starting the reading of code, and experimentation

Questions ???