ETSI ETR 209-ed.1

Integrated Services Digital Network (ISDN); Freephone (FPH) supplementary service; Functional capabilities and information flows

STANDARD published on 15.3.1996

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The information about the standard:

Designation standards: ETSI ETR 209-ed.1
Publication date standards: 15.3.1996
The number of pages: 57
Approximate weight : 171 g (0.38 lbs)
Country: European technical standard
Category: Technical standards ETSI