a ie sudiuenudesu
1. ISDN is.
Noun
#147319
1. ISDN is.
1. Excuse me.; I am BISDN.
1. integrated services digital network; ISDN
1. broadband ISDN; B-ISDN
1. ISDN's; Relating to ISDN
1. Probably ISDN.
1. If ISDN; When ISDN
1. ISDN with; Using ISDN
1. Probably ISDN.; It will likely be ISDN.
1. Using B-ISDN; With B-ISDN