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Public Switched Telephone Network (PSTN); Signalling System R2; Conversion between analogue and digital versions of line signalling [CEPT Recommendation T/CS 42-04 E (1984)]
STANDARD published on 15.3.1996
Designation standards: ETSI ETR 252-ed.1
Publication date standards: 15.3.1996
SKU: NS-311814
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: European technical standard
Category: Technical standards ETSI
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