ČSN ETS 300138-1 (877030)

Integrated Services Digital Network (ISDN). Closed User Group (CUG) supplementary service. Digital Subscriber Signalling System No. one (DSS1) protocol. Part 1: Protocol specification

STANDARD published on 1.6.1995

Czech preface only -
Print design (1.30 USD)

The information about the standard:

Designation standards: ČSN ETS 300138-1
Classification mark: 877030
Catalog number: 17848
Publication date standards: 1.6.1995
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: Czech technical standard
Category: Technical standards ČSN