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Private Integrated Services Network (PISN); Inter-exchange signalling protocol; Call priority interruption and call priority interruption protection supplementary services [ISO/IEC 15992 (2003), modified]
STANDARD published on 6.1.2004
Designation standards: ETSI EN 301656-V1.2.1
Publication date standards: 6.1.2004
SKU: NS-310198
The number of pages: 6
Approximate weight : 18 g (0.04 lbs)
Country: European technical standard
Category: Technical standards ETSI
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