Emergency%20Calling%20for%20VoIP%20Wonsang%20Song%20and%20Jong%20Yul%20Kim%20Internet%20Real-Time%20Lab,%20Columbia%20University

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Emergency Calling for VoIPWonsang Song and Jong
Yul Kim Internet Real-Time Lab, Columbia
University

• Project Overview
• Develop a prototype system that routes emergency
  calls over SIP based VoIP networks.
• Use embedded location information delivered via
  the SIP protocol to make routing decisions.
• Provide opportunities to enhance 911 system
• More robust
• Additional services like multimedia, video, etc.
• Better integration with first responders and
  public safety
• Cheaper to build and operate.

• Why is VoIP Emergency Calling Interesting?
• Where is the user calling from?
• Users can be nomadic or mobile
• Many solutions (user entry, GPS, DHCP, CDP etc)
• How do you determine the PSAP nearest to the
  caller?
• Location is given as geo coordinates / civic
  address
• Civic addresses DNS NAPTR records
• Geo coordinates DNS map polygon data
• No address Route to default PSAP
• What kind of additional features are possible?
• Streaming instructional video to caller (e.g. CPR
  how-to)
• Language-based calltaker routing
• Auto-answering similar incidents based on
  time/location

• Project Participants
• Columbia University
• Texas AM University
• University of Virginia
• State of  Texas Commission on State Emergency
  Communications
• State of Virginia Commission on State Emergency
  Communications
• University Corporation for Advanced Internet
  Development
• Brazos County Texas E911 District
• National Emergency Numbering Association
• Cisco Inc.
• Nortel Inc.

The original grant proposal can be found in
http//ng911.tamu.edu. For drafts and papers, see
http//www.cs.columbia.edu/sip/emergency.html.