IEVref:
721-17-50
ID:
Language:
en
Status:
Standard
Term:
calling signal
Synonym1:
Synonym2:
Synonym3:
Symbol:
Definition:
a forward switching signal transmitted on a circuit or a subscriber's line to indicate that the setting up of a call is requested
Publication
date
:
1991-11
Source
Replaces:
Internal notes:
CO remarks:
TC/SC remarks:
VT remarks:
Domain1:
Domain2:
Domain3:
Domain4:
Domain5:
a forward switching signal transmitted on a circuit or a subscriber's line to indicate that the setting up of a call is requested