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.767 Amendment 1 (2002), modified]
STANDARD published on 1.2.2004
Designation standards: STN EN 300121-V1.2.1
Classification mark: 870121
Catalog number: 93255
Publication date standards: 1.2.2004
Approximate weight : 300 g (0.66 lbs)
Country: Slovak technical standard
Category: Technical standards STN