ETSI ETR 254-ed.1

Public Switched Telephone Network (PSTN); Signalling System R2; Signalling and circuit supervision via the European Communications Satellite (ECS) [CEPT Recommendation T/CS 42-09 E (1985)]

NORMA vydána dne 15.3.1996

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The information about the standard:

Designation standards: ETSI ETR 254-ed.1
Publication date standards: 15.3.1996
The number of pages: 10
Approximate weight : 30 g (0.07 lbs)
Country: European technical standard
Kategorie: Technické normy ETSI