Nortel DMS-100 Series Maintenance Manual page 183

the office has coded ringing, the system applies a ring splash to the
opposite side of the terminator.
— Talking: A voice connection between the call originator and
terminator. The system restores tip and ring reversal relay for
semi-post-paid coin line.
— Originator disconnect: The originator goes on-hook first. The system
idles the originating line. Supervision continues on the terminating
line.
— Terminator disconnect: The terminator goes on-hook first. The system
idles the terminating line. Supervision continues on the originating
line. Lines with cutoff on disconnect feature have the system operate
cutoff relay.
— Release originator: A transitional state when the system releases the
originator from call processing.
— Busy: The system applies a busy tone to the originating line. The
system performs supervision and timing on the terminal.
— Reorder: The system applies a reorder tone to the terminal. The
system performs supervision and timing on the terminal.
— Coin disconnect supervise: The originating coin line goes on-hook
first. The system implements the coin release function. Call
DMS-100 Family OPM Maintenance Manual ISN07 (TDM)/SN07 (DMS) and up
ESA maintenance overview 4-15