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Active standard | Published: 01/07/2021
UNE-EN 300121V1.2.1
Integrated Services Digital Network (ISDN);Application of the ISDN User Part (ISUP) of ITU-T Signalling System No. 7 (SS7) for international ISDN interconnections (ISUP version 1) Amendment 1: International Emergency Preference Scheme (IEPS) service [ITU-T Recommendation Q.767Amendment 1 (2002), modified] (Endorsed by Asociación Espanola de Normalización in July of 2021.)
Available languages: Spanish
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Detail information
Designation: UNE-EN 300121V1.2.1
Publication date: 01/07/2021
Pages: 0
Country: Spanish technical standard
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