1. NG9-1-1 Project
Traditional system does not work well for calls from Internet phones!
Two (related) fundamental problems
Where is the caller?
To which PSAP (call center) should the call go to?
Other problems
Going beyond the traditional functionalities
Multimedia (audio + video + text)
Sending instructional video on CPR
Project Participants
Columbia University, Texas A&M University, University of Virginia
NENA, Cisco, Nortel
Funded by NTIA, SipQuest

2. NG9-1-1 Project Location Determination Current status
SIP-based prototype system
NENA requirements for IP-capable PSAPs
IETF ECRIT WG Proposals to solutions for fundamental problems
On-going preparations for testing in live PSAP in College Station, Texas
CDP
DHCP
GPS
Manual Entry
Merits
Cisco devices are ubiquitous
Less burden for administrators than DHCP
DHCP is ubiquitous
Applicable to both SIP UA and SIP proxy
Delivers precise location
No work for administrators
Is always a backup method
Drawbacks
Only works with Cisco switches and access points
Administrators have to enter switch – location mapping
No good for wireless connections
Administrators have to enter machine – location mapping for each machine
GPS does not work indoors or when a significant portion of the sky is blocked from view.
No guarantee of timely update
Prone to human error
Useful
Situation
In organizations that use Cisco devices
In organizations where computers are fixed in one place
Outdoors
When all else fails