Integrated Services Digital Network (ISDN); Completion of Calls to Busy Subscriber (CCBS) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 1: Protocol specification (Endorsed by AENOR in April of 2005.)
NORMA vydána dne 1.4.2005
Designation standards: UNE-EN 300359-1V1.2.4
Publication date standards: 1.4.2005
Approximate weight : 300 g (0.66 lbs)
Country: Spanish technical standard
Kategorie: Technické normy UNE