Integrated Services Digital Network (ISDN) - Selective Call Forwarding (SCF) supplementary services (unconditional, busy and no reply) - Service description
NORMA vydána dne 1.1.1999
Designation standards: ÖNORM EN 301133-V1.1.1
Publication date standards: 1.1.1999
The number of pages: 19
Approximate weight : 57 g (0.13 lbs)
Country: Austrian technische Norm
Kategorie: Technické normy ÖNORM