%% What is the difference between E&M and E&M FGD?

[titomontos]

Hello,

I want to ask about what is the difference between E&M and E&M feature group D and B and EANA?

an when i can use each one?

Thanks a lot......

[paolo bevilacqua]

These are signaling protocols used in North America for certain services by telco. If you aren't in that situation, these are never used.