What is FEATURE GROUPS?

Separate switching arrangements available from local exchange carrier (LEC) end central offices to interexchange (long distance) carriers. These switching arrangements allow the end users to make toll calls via their chosen long distance carrier.

Feature Group A: Line side connections presently serving specialized Common carriers.
Feature Group B: Trunk side connections without equal digit or code dialing.
Feature Group C: Trunk side connections presently serving AT&T.
Feature Group D: The class of service associated with equal access arrangements, which is a trunk-side connection provided by the LECs. FGD allows phone users in the United States to pick up the telephone and dial 1+ to place a long distance call.