Ｂ－ＩＳＤＮ LinksSentence search for Ｂ－ＩＳＤＮSentence search for ビー・アイ・エス・ディー・エヌEdit in JMdict Noun1. broadband ISDN; B-ISDNTelecommunications Discussions Log in to talk about this word.