Integrated Services Digital Network (ISDN). Completion of Calls to Busy Subscriber (CCBS) supplementary service. Service description
STANDARD published on 1.2.2002
Designation standards: STN EN 300357-V1.2.1
Classification mark: 870357
Catalog number: 19740
Publication date standards: 1.2.2002
The number of pages: 22
Approximate weight : 66 g (0.15 lbs)
Country: Slovak technical standard
Category: Technical standards STN