Honours Project SIP / H.323 / AIX telephone customization

Project Information Supervisors: Supervisors: Prof. Alfredo Terzoli Prof. Alfredo Terzoli Prof. Peter Clayton Prof. Peter Clayton Falls under VoIP research area Falls under VoIP research area

What is VoIP? Voice over Internet Protocol Voice over Internet Protocol Allows one to speak over a data network Allows one to speak over a data network Various Protocols, eg. SIP, H.323 Various Protocols, eg. SIP, H.323 Work in the C.S. department is being done on a VoIP PBX known as iLanga Work in the C.S. department is being done on a VoIP PBX known as iLanga

Other Honours Students in this field Fred Otten Fred Otten Adding video to asterisk Adding video to asterisk Justin Zondagh Justin Zondagh Cross Protocol Rerouting of communication sessions Cross Protocol Rerouting of communication sessions They will study iLanga and Asterisk in depth

Background The Computer Science department currently uses a telephone service, iLanga The Computer Science department currently uses a telephone service, iLanga Connects different networks, Connects different networks, E.g. SIP <> H.323 <> PSTN E.g. SIP <> H.323 <> PSTN Manages prepaid credit, voic etc. Manages prepaid credit, voic etc. The phone I am improving is one type of end device used in iLanga The phone I am improving is one type of end device used in iLanga

The SIP/H.323/AIX telephone Programmed and manufactured in China Programmed and manufactured in China One type of end device used in iLanga One type of end device used in iLanga Comes with an API which allows the phone to be reprogrammed Comes with an API which allows the phone to be reprogrammed Will soon be offered to a number of students in residences Will soon be offered to a number of students in residences

Objective of Research Study the API and code of the phone Study the API and code of the phone Make the telephone more suitable for our purposes Make the telephone more suitable for our purposes This involves improving the display, improve other aspects such as the meaning of LEDs and buttons. This involves improving the display, improve other aspects such as the meaning of LEDs and buttons. Possibly work with a Masters student and implement encryption Possibly work with a Masters student and implement encryption

Approach to the Study Read about asterisk and iLanga and find out how they work Read about asterisk and iLanga and find out how they work Learn about the protocols the phone uses Learn about the protocols the phone uses Study the phones API, and the code (about 2mb of c) and how to compile it Study the phones API, and the code (about 2mb of c) and how to compile it Learn more about embedded systems and how to update the phones flash memory with the new code Learn more about embedded systems and how to update the phones flash memory with the new code

Aim of the Project Improve the phone so that it is suitable for our purposes and for the use in residences Improve the phone so that it is suitable for our purposes and for the use in residences Why not get a better phone? – This one is very cheap and has all the features needed, they just need to be improved Why not get a better phone? – This one is very cheap and has all the features needed, they just need to be improved

Thank You References References Centrality Communications, PA1688 IP Phone Development guide, Centrality Communications, 2004 Centrality Communications, PA1688 IP Phone Development guide, Centrality Communications, 2004 Penton, J., Terzoli, A., Asterisk: A Converged TDM and Packet-based Penton, J., Terzoli, A., Asterisk: A Converged TDM and Packet-based Communications System, Computer Science Department, Rhodes University, 2003 Communications System, Computer Science Department, Rhodes University, 2003 Penton, J., Terzoli, A., iLanga: A Next Generation VoIP-based, TDM-enabled PBX, South African Telecommunications Networks and Appliances Conference, September 2004, Spiers Penton, J., Terzoli, A., iLanga: A Next Generation VoIP-based, TDM-enabled PBX, South African Telecommunications Networks and Appliances Conference, September 2004, Spiers