FGD (Feature Group D)
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