AT&T MERLIN LEGEND Release 3.0 System Programming And Maintenance Manual page 120

Glossary
S
SAA
SA buttons
SDN
S I D
simplex signaling
signaling
single-line telephone
slot
SMDR
GL-30 System Programming and Maintenance (SPM)
(Supplemental Alert Adapter) Device that
permits -48-VDC alerting equipment to be
connected to an analog multiline telephone
jack so that people working in noisy or remote
areas of a building can be alerted to incoming
calls.
Telephone buttons that provide a single
interface to users for both internal and external
calling.
(Software Defined Network) AT&T private
networking service created by specialized
software within the public network.
[station (extension) identification]
Transmission of signals in one direction only
across a telecommunications channel.
Sending of control and status information
between devices to set up, maintain, or cease
a connection such as a telephone call.
Industry-standard touch-tone or rotary-dial
telephone that handles only one call at a time
and is connected to the system via an
extension jack on a basic 012 or 008 OPT
module.
Position in a carrier for a module; numbered
from 0 (processor module).
(Station Message Detail Recording) Feature
that captures detailed usage information on
incoming and outgoing voice and data calls.