Integrated Services Digital Network (ISDN). Completion of Calls to Busy Subscriber (CCBS) supplementary service. Service description
STANDARD published on 1.4.2002
Designation standards: STN ETS 300357
Classification mark: 870357
Catalog number: 19987
Publication date standards: 1.4.2002
The number of pages: 25
Approximate weight : 75 g (0.17 lbs)
Country: Slovak technical standard
Category: Technical standards STN