I.S. EN 300 356-21:2001
Current
Current
The latest, up-to-date edition.
INTEGRATED SERVICES DIGITAL NETWORK (ISDN) - SIGNALING SYSTEM NO. 7 (SS7) - ISDN USER PART (ISUP) VERSION 4 FOR THE INTERNATIONAL INTERFACE - PART 21: ANONYMOUS CALL REJECTION (ACR) SUPPLEMENTARY SERVICE
Published date
12-01-2013
Publisher
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Specifies ISUP V4 specific enhancements for the supplementary service Anonymous Call Rejection (ACR).
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