ATIS 1000650.1995(S2020)
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ISDN – Usage of the Cause Information Element in Digital Subscriber Signaling System Number 1 (DSS1)
This standard defines the usage, format, and encoding of the cause information element within the context of the Digital Subscriber Signaling System Number 1 (DSS1) of an Integrated Services Digital Network (ISDN). It also defines the meaning of specific causes, and the usage of the location and diagnostic fields. Formerly known as T1.650-1995(R2005).
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