Especially in Jodo Shinshu, it is general to call danto and believers 'monto,' but it's rare that one would refer to the danto of other Buddhist sects by that name.
ことに浄土真宗の檀徒・信者を「門徒」と呼ぶことが一般的であり、他宗派の檀徒を門徒と呼ぶことは少ない。