Integrated Services Digital Network (ISDN); Generic keypad protocol for the support of supplementary services; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 1: Protocol specification
NORM herausgegeben am 30.6.1998
Designation standards: ETSI EN 300122-1-V1.2.4
Publication date standards: 30.6.1998
The number of pages: 11
Approximate weight : 33 g (0.07 lbs)
Country: European technical standard
Kategorie: Technische Normen ETSI