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  4. Standard "ÖNORM EN 300121-V1.2.1"
Standard ÖNORM EN 300121-V1.2.1 1.9.2003 preview

ÖNORM EN 300121-V1.2.1

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.767 Amendment 1 (2002), modified]

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STANDARD published on 1.9.2003


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22.80 USD

The information about the standard:

Designation standards: ÖNORM EN 300121-V1.2.1
Publication date standards: 1.9.2003
SKU: NS-766195
The number of pages: 7
Approximate weight : 21 g (0.05 lbs)
Country: Austrian technische Norm
Category: Technical standards ÖNORM

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Integrated Services Digital Network (ISDN)

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