Features and Specifications Manual
D1 – 231
Doc.
No. 8201 -
Release 1.0
July 2003
Data Line Security
D-1
FEATURE
DESCRIPTION
The Data Line Security feature protects any station port from receiving
audible tones (such as Camp-On or Override tones) and denies a station
from barging in while busy. It prevents disruption of data transmission when
using a modem or fax (facsimile) machine.
SYSTEM
AVAILABILITY
Terminal Type
All terminals.
Required Components
None.
OPERATING
PROCEDURE
SERVICE
CONDITIONS
Data Assignment
This feature is assigned, per station, via System Programming.
General
When a Multiline Terminal is assigned for Data Line Security, a Tone
Override and call alert notification tone are not heard from the
handset; however, the Tone Override and call alert notification tone
are sent and heard from the speaker when the Multiline Terminal is
off hook.
A Single Line Telephone connected to an SLI(8)-U( ) ETU or an
SLT(1)-U( ) ADP, with Data Line Security assigned, rings at a rate of 1
second ON/2 seconds OFF for any ringing or transferred call.
The ringing pattern of a Single Line Telephone, connected to
an AP(R)-R( ) Unit, does not change when Data Line Security
is assigned.
Data Line Security protects a station from Barge-In, even if Barge-In is
allowed in Class of Service.
RELATED
FEATURES LIST
Not applicable.
Feature
Number
Feature Name
C-1
Call Alert Notification
C-17
Class of Service
