I.S. ETS 300 199:1995
Current
Current
The latest, up-to-date edition.
INTEGRATED SERVICES DIGITAL NETWORK (ISDN) - CALL FORWARDING BUSY (CFB) SUPPLEMENTARY SERVICE - SERVICE DESCRIPTION
Published date
12-01-2013
Publisher
Defines the stage one of the Call Forwarding Busy (CFB) supplementary service for the pan-European Integrated Services Digital Network (ISDN) as provided by European public telecommunications operators.
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