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  4. Standard "ETSI ETR 203-ed.1"
Standard ETSI ETR 203-ed.1 15.9.1995 preview

ETSI ETR 203-ed.1

Public Switched Telephone Network (PSTN); Messages and formats for push-button dialling [CEPT Recommendation T/CS 28-01 E (1980)]



STANDARD published on 15.9.1995


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Price16.50 USD excl. VAT
16.50 USD

The information about the standard:

Designation standards: ETSI ETR 203-ed.1
Publication date standards: 15.9.1995
SKU: NS-311764
The number of pages: 7
Approximate weight : 21 g (0.05 lbs)
Country: European technical standard
Category: Technical standards ETSI

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