Private Telecommunication Network (PTN); Specification, functional models and information flows; Call intrusion supplementary service
STANDARD published on 26.9.1995
Designation standards: ETSI ETS 300425-ed.1
Publication date standards: 26.9.1995
The number of pages: 89
Approximate weight : 298 g (0.66 lbs)
Country: European technical standard
Category: Technical standards ETSI