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ETSI EN 300 485

Integrated Services Digital Network (ISDN); Definition and usage of cause and location in Digital Subscriber Signalling System No. one (DSS1) and Signalling System No. 7 (SS7) ISDN User Part (ISUP) [ITU-T Recommendation Q.850 (1998) with addendum modified
standard by European Telecommunications Standards Institute, 04/01/2001
Publisher: ETSI

$7.00$14.00

This addendum specifies the ETSI DSS1 cause value.

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