Integrated Services Digital network (ISDN). Digital Subscriber Signalling System No. one (DSS1) protocol. Completion of Calls on No Reply (CCNR) supplementary service. Part 4: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the user (Endorsed by AENOR in May of 2004.)
NORMA vydaná dňa 1.5.2004
Označenie normy: UNE-EN 301065-4V1.2.1
Dátum vydania normy: 1.5.2004
Približná hmotnosť: 300 g (0.66 libier)
Krajina: Španielska technická norma
Kategória: Technické normy UNE