ATIS 0600411.2001(S2015)

This standard provides analog interface requirements for the interconnection of Customer Installations (Cis), such as Private Branch Exchanges, to Enhanced 911 systems. The analog interface allows the CI to transmit the caller's emergency service identification information to an Enhanced 911 system in applications where multiple terminals share Enhanced 911 switched access. These requirements are intended to assist carriers, end-users, and manufacturers. This revision replaces T1.411-1995 and T1.411a-1996 in their entirety.