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Private Integrated Services Network (PISN); Inter-exchange signalling protocol; Call identification and call linkage Additional Network Feature (ANF) [ISO/IEC 21889 (2001), modified]
STANDARD published on 6.1.2004
Designation standards: ETSI EN 301923-V1.1.1
Publication date standards: 6.1.2004
SKU: NS-310436
The number of pages: 6
Approximate weight : 18 g (0.04 lbs)
Country: European technical standard
Category: Technical standards ETSI
Latest update: 2026-04-24 (Number of items: 2 274 650)
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