Integrated Services Digital Network (ISDN);Signalling System No.7;ISDN User Part (ISUP) version 2 for the international interface;Part 31: Protocol Implementation Conformance Statement (PICS) proforma specification for basic services [ITU-T Recommendation Q.784.2, clauses 2, 3 and 9, and annex A, modified] (Endorsed by Asociación Española de Normalización in June of 2022.)
| AENOR | |
|---|---|
| Product Category | Standards and Technical Documents |
| Product Name | UNE-ETS 300356-31 Ed1 |
