Integrated Services Digital Network (ISDN); Digital Subscriber Signalling System No. one (DSS1) protocol; Signalling network layer for circuit-mode basic call control; Part 2: Specification and Description Language (SDL) diagrams (Endorsed by AENOR in July of 2005.)
NORM herausgegeben am 1.7.2005
Designation standards: UNE-EN 300403-2V1.3.1
Publication date standards: 1.7.2005
Approximate weight : 300 g (0.66 lbs)
Country: Spanish technical standard
Kategorie: Technische Normen UNE