ETSI EN 301 453-2
- Private Integrated Services Network (PISN); Inter-exchange signalling protocol; Diversion supplementary services; Part 2: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification
- standard by European Telecommunications Standards Institute, 01/01/2002
- Publisher: ETSI
$133.00$266.50
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