
Private Telecommunication Network (PTN) - Signalling at the S-reference point - Generic keypad protocol for the support of supplementary services
STANDARD published on 1.8.1993
Designation standards: ÖNORM ETS 300190
Note: WITHDRAWN
Publication date standards: 1.8.1993
The number of pages: 24
Approximate weight : 72 g (0.16 lbs)
Country: Austrian technische Norm
Category: Technical standards ÖNORM