Integrated Services Digital Network (ISDN); Closed User Group (CUG) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification (Endorsed by AENOR in September of 2003.)
NORMA vydaná dňa 1.9.2003
Designation standards: UNE-EN 300138-2V1.3.4
Publication date standards: 1.9.2003
Approximate weight : 300 g (0.66 lbs)
Country: Spanish technical standard
Kategória: Technické normy UNE