ISDN meaning in HindiTags: ISDN meaning in Hindi. ISDN meaning in hindi. ISDN in hindi language. What is meaning of ISDN in Hindi dictionary? ISDN ka matalab hindi me kya hai (ISDN का हिन्दी में मतलब ). ISDN in hindi. Hindi meaning of ISDN , ISDN ka matalab hindi me, ISDN का मतलब (मीनिंग) हिन्दी में जाने। What is ISDN ? Who is ISDN ? Where is ISDN English to Hindi dictionary(शब्दकोश).