Under NG911 Phase 2 (47 CFR 9.29), originating service providers must deliver 911 traffic in IP-based SIP format with location information embedded in the call signaling using PIDF-LO.

Checked 2026-09-24

Vendor
FCC
Product
47 CFR Part 9 Subpart J
Subsystem
phase-2
Deployment
all
Region
us
Release range
current as of 2026-09-24
Checked
2026-09-24

Sources

Cite this note

APA

WarmTransfer. (2026, September 24). NG911 and i3 architecture transition: source note ng911-transition-phase2-pidf-lo. WarmTransfer. https://warmtransfer.net/knowledge/claims/ng911-transition-phase2-pidf-lo

BibTeX

@misc{warmtransfer-claim-ng911-transition-phase2-pidf-lo,
  title  = {NG911 and i3 architecture transition: source note ng911-transition-phase2-pidf-lo},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/ng911-transition-phase2-pidf-lo},
  note   = {Source note ng911-transition-phase2-pidf-lo, checked 2026-09-24}
}

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