ST (Start)

ST (Start) is an MF signaling tone (digit).

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.

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• NENA-STA-027, NENA E9-1-1 PSAP Equipment Standards
• NENA 03-002, NENA Standard for the Implementation of Enhanced MF Signaling, E9-1-1 Tandem to PSAP