Costs
•Same operator fee : 0.47 TL / min
• Other operators : 0.64 TL / min
• Turk Telekom : 0.60 TL / min
• Text message fee : 0.30 TL / message
Security
Problem of both telephony and internet communication.
No solution for PSTNs or GSMs
What are the problems on internet? Man-in-the-middle attack Administrator as Big Brother
Project Description
Secure VoIP VoIP stands for “Voice over Internet Protocol”
Aims low cost and secure communication No extra cost other than internet fee Data can be encrypted
Targets from companies, military, government to home users
Project DescriptionSecure VoIP
VoIP stands for “Voice over Internet Protocol”
Aims low cost and secure communication No extra cost other than internet fee Data can be encrypted
Targets from companies, military, government to home users
Project DescriptionSecure VoIP
VoIP stands for “Voice over Internet Protocol”
Aims low cost and secure communication No extra cost other than internet fee Data can be encrypted
Targets from companies, military, government to home users
FPGA Board
• Input Device : Microphone
• Output Device : Speaker
• Single board computer
• Encryption on board CPU
•Data Transfer over Ethernet
Asterisk
PBX Software Short for “private branch exchange”
Bridge between endpoints Routs the data
Open Source Telephony Project used by small businesses, large businesses, call centers,
carriers and governments
Referenceshttp://www.voip-info.org/wiki/view/What+is+V
OIPhttp://www.economist.com/world/europe/displ
aystory.cfm?story_id=14921383http://www.turkcell.com.tr/bireysel/tarifeler/fa
turali/digertarifeler/tarifesaniye“VoIP and Skype Security”, Simson L.
Garfinkel “Network Protocols Handbook”, Javvin
Technologies, INC