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SM EN 300 356-19 V4.2.1:2020
Integrated Services Digital Network (ISDN). Signalling System No.7 (SS7). ISDN User Part (ISUP) version 4 for the international interface. Part 19: Three-Party (3PTY) supplementary service [ITU-T Recommendation Q.734, clause 2 (1996) and implementors guide (1998) modified]
- Statute : Adopted
- Effective date : 25.05.2020
- Is valid? : Yes
- Available in : English
- Pages : 10
Classification of the standard
- ICS code
- Name
- 33.080
- Integrated Services Digital Network (ISDN)
Link between documents
- Link type
- Notation
- IDT
- ETSI EN 300 356-19 V4.2.1 (2001-07)