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Standard [CURRENT]

OENORM EN 300403-1 V 1.3.2:2000-02-01

Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) protocol - Signalling network layer for circuit-mode basic call control - Part 1: Protocol specification [ITU-T Recommendation Q.931 (1993), modified]

Publication date
2000-02-01
Original language
English
Pages
419

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Publication date
2000-02-01
Original language
English
Pages
419

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