NBN ETS 300 356 9 : 1995
Current
Current
The latest, up-to-date edition.
INTEGRATED SERVICES DIGITAL NETWORK (ISDN) SIGNALLING SYSTEM NO.7 ISDN USER PART (ISUP) VERSION 2 FOR THE INTERNATIONAL INTERFACE - PART 9: CLOSED USER GROUP (CUG) SUPPLEMENTARY SERVICE
Published date
01-12-2013
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