From SIPfoundry sipXecs IP PBX, The Open Source SIP PBX for Linux - Calivia

Contents 1 Useful Links & References 1.1 VoIP Security 1.2 Free Codec and Packet Loss Concealment 1.3 Peer-to-Peer SIP 1.4 "Free" as in "Free Speech" 1.5 Great Blog's

Useful Links & References

VoIP Security

• VoIP Security Alliance
• VoIP Security and Countermeasures
• NIST Recommendations on VoIP Security

Free Codec and Packet Loss Concealment

• The Xiph Foundation - dedicated to protecting the foundations of Internet multimedia from control by private interests
  • Theora Video Codec
  • Ogg Vorbis Audio Codec
  • Speex - A free codec for free speech
• iLBC free codec
• Dirac free video codec

Peer-to-Peer SIP

• CHORD - A Peer-to-Peer SIP Protocol
• Peer-to-Peer SIP
• Henry Sinnreich's RFI

"Free" as in "Free Speech"

• Free Software Foundation
• Copyright law in Cyberspace
• Software Patents
• Say NO to corrupt Audio disks

Great Blog's

• EuroTelcoblog by James Enck
• Telepocalypse by Martin Geddes
• Tom Keating's VoIP blog
• Steve's Tech Journal
• Om Malik's Broadband Blog
• VoIP Watch
• Russell Shaw's IP Telephony Blog