IEVref:
714-07-14
ID:
Language:
en
Status:
Standard
Term:
vacant-number signal
Synonym1:
Synonym2:
Synonym3:
Symbol:
Definition:
a backward signal sent to indicate that the called number has not been allocated
Publication
date
:
1992-04
Source
Replaces:
Internal notes:
CO remarks:
TC/SC remarks:
VT remarks:
Domain1:
Domain2:
Domain3:
Domain4:
Domain5:
a backward signal sent to indicate that the called number has not been allocated