NCAS (Non Call Associated Signaling)

From NENA Knowledge Base

NCAS (Non Call Associated Signaling) is a method for delivery of wireless 9‑1‑1 calls in which the Mobile Directory Number and other call associated data are passed from the Mobile Switching Center to the PSAP outside the voice path.

Also known as:

Non Call-path Associated Signaling

Relevant NENA Documents


External References


ATIS J-STD-036-C-2 - Addendum to J-STD-036-C, Enhanced Wireless 9-1-1 Phase II