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So, what’s the problem?
Translate LO (in civic or geo form) to PSAP URI
The boundaries are in the MSAGs, and are not simple; a real database is required
You can do the database lookup before you need it, but boundaries change all the time
We need room level location (although boundaries don’t cross rooms)
We need validation of a (civic) location PRIOR to use
There is more data that just the PSAP URI associated with the location (e.g. Responder ids/uris)

PPT Version