Integrated Services Digital Network (ISDN). Call Forwarding Busy (CFB) supplementary service. Service description
STANDARD published on 1.2.2002
Designation standards: STN EN 300199-V1.2.1
Classification mark: 870199
Catalog number: 19727
Publication date standards: 1.2.2002
The number of pages: 23
Approximate weight : 69 g (0.15 lbs)
Country: Slovak technical standard
Category: Technical standards STN