The standard covers two TAE types : F ( `` FernsprechgerÃ t '' : for telephones ) and N ( `` NebengerÃ t '' : for other devices such as answering machines and modems ) . The standard covers two TAE types : F ( `` FernsprechgerÃ t '' : for telephones ) and N ( `` NebengerÃ t '' or `` NichtfernsprechgerÃ t '' : for other devices such as answering machines and modems ) .