FGD (Feature Group D)

From NENA Knowledge Base

FGD (Feature Group D) is an MF signaling protocol, originally developed to support equal access to long distance services, capable of carrying one or two ten-digit telephone numbers.

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-INF-008, NENA NG9-1-1 Transition Plan Considerations Information Document
  • NENA 03-002, NENA Standard for the Implementation of Enhanced MF Signaling, E9-1-1 Tandem to PSAP