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Integrated Services Digital Network (ISDN); Call Forwarding Busy (CFB) supplementary service; Service description
STANDARD published on 5.6.2001
Designation standards: ETSI EN 300199-V1.2.1
Publication date standards: 5.6.2001
SKU: NS-308597
The number of pages: 23
Approximate weight : 69 g (0.15 lbs)
Country: European technical standard
Category: Technical standards ETSI
Latest update: 2025-05-12 (Number of items: 2 199 201)
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