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Table of Contents VoIP technology Skype network Skype functionalities Network traffic Skype interacts with References Legal

VoIP technology

• Codecs
• Encryption
• Native Address Translation (NAT)
• STUN

Skype network

• Nodes
• Super Nodes

Skype functionalities

• Login
  • Buddy List
• Assets
• Apps
• API
• Pricelist

Network traffic

Traffic analysis is possible using Wireshark (http://wireshark.org).

• Skype's UDP Format
• TCP Supernode Handshake
• TCP Authentication

Skype interacts with

• Facebook
• Google
• MSN

References

• see References

Legal

• see Legal