OENORM EN 300121 V 1.2.1:2003-09-01

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]

Publication date: 2003-09-01
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Publication date: 2003-09-01
Product with additional digital content.: PDF
Additional digitale content will be provided based on format and purchase option. Please note any information in the document.
Original language: English
Pages: 7

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