Historical
T1.404-2002
Network and Customer Installation Interfaces - DS3 and Metallic Interface Specification (Revision and Consolidation of T1.404-1994 and T1.404a-1996)
This Technical Report (TR) provides a high-level service description of the Emergency Telecommunications Service (ETS), its requirements and objectives, and an overview of document standardization initiatives with a focus on Committee T1.
Alliance For Telecommunications Industry Solutions [atis]