ATIS T1.TR.47-1996
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Digital Subscriber Signaling System Number 1 (DSS1) – Codepoints for Integrated Services Digital Network (ISDN) Supplementary Services
This Technical Report is a compilation of DSS1 codepoints that are defined for use by ISDN Supplementary Services. The information presented in this report includes modifications and extensions to DSS1 Layer 3 messages, information elements, codepoints and timers defined for ISDN Supplementary Services that have been published as American National Standards.
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