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

Non-Call Associated Signaling

Relevant NENA Documents
Note: To find and download the document, copy the document number (like NENA-STA-010) from below and search the NENA Standards and Documents page.

  • NENA 05-501, NENA Technical Information Document - SS7 Guidelines for MSC to Selective Router Connectivity
  • NENA-INF-003, NENA Potential Points of Demarcation in NG9-1-1 Networks Information Document

External References

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

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