ATIS T1.607-2000 (R2004) Integrated Services Digital Network (ISDN) - Layer 3 Signaling Specification for Circuit Switced Bearer Service for Digital Subscriber Signaling System Number 1(DSS1)
ATIS T1.607-2000 (R2004) Integrated Services Digital Network (ISDN) - Layer 3 Signaling Specification for Circuit Switced Bearer Service for Digital Subscriber Signaling System Number 1(DSS1)