Historical
ATIS-1000608.1991(R2007)
Integrated Services Digital Network (ISDN) - Signaling Specification for X.25 Packet-Switched Bearer Service for Digital Subscriber Signaling System Number 1 (DSS1)
The interface standard was written to provide a set of requirements for user-network signaling for ISDN support of packetized data transfer, while conforming, wherever possible, with the I-Series Recommendations of the International Telegraph and Telephone Consultative Committee (CCITT), and while not compromising the principles of evolution expressed therein. Formerly known as T1.608-1991(R2007).
Alliance For Telecommunications Industry Solutions [atis]