
Private Telecommunication Network (PTN) - Inter-exchange signalling protocol - Supplementary service interactions
STANDARD published on 1.12.1995
Designation standards: ÖNORM ETS 300427
Note: WITHDRAWN
Publication date standards: 1.12.1995
The number of pages: 47
Approximate weight : 141 g (0.31 lbs)
Country: Austrian technische Norm
Category: Technical standards ÖNORM