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INCITS 178-1990(R1995) Add.1:1991
M00001569
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INCITS 178-1990(R1995) Add.1:1991 Addendum 1 to ANSI/NCITS X3.178-1990, Packet-Switched Signalling System Between Public Networks Providing Data Transmission Services - NUI Utility Extensions and Format Constraints (formerly ANSI X3.178-1990(R1995) Add.1:1991)
standard by InterNational Committee for Information Technology Standards (formerly NCITS), 01/01/1991
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