Nortel-networks NN43001-106 Manual de usuario Pagina 156

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156 Access Restrictions
The assignment of Incoming Call Indicator (ICI) keys allows the attendant to
recognize which calls are fully restricted:
DF0 = calls from FRE, FR1, and FR2 CLS, and
DL0 = calls from CUN, CTD, TLD, SRE, and UNR CLS.
Semi-Restricted Service (SRE)
allowed to receive calls from the exchange network
restricted from all dial access to the exchange network
allowed to access the exchange network through an attendant or an
unrestricted telephone only
Toll Denied Service (TLD)
allowed to receive calls from the exchange network
allowed access to WATS tr unks for toll calls using direct trunk access
codes, unless New Flexible Code Restriction (NFCR) is programmed
to deny certain digits
denied from calls on Central Office/Foreign Exchange (CO/FX) tr unks
where 0 or 1 is dialed as a first or second digit following a direct trunk
access code. Special numbers, such as 411, 611, and 911, are allowed
by default unless restricted specifically by NFCR.
denied from toll calls on CO/FX trunks when BARS or NARS access
codes are dialed, unless NFCR tables allow the call
allowed toll calls on WATS trunks using BARS or NARS access codes,
unless NFCR tables deny digits
allowed access to the toll exchange network through an attendant or
an unrestricted telephone
allowed toll calls and special number calls on TIE trunks, unless NFCR
tables specifically deny certain digits. Direct trunk access to toll calls on
TIE trunks is permitted, as well as BARS or NARS access.
Conditionally Toll Denied Service (CTD)
allowed to receive calls from the exchange network
allowed access to WATS tr unks for toll calls using direct trunk access
codes, unless New Flexible Code Restriction (NFCR) is programmed
to deny certain digits
denied from calls on CO/FX trunks where 0 or 1 is dialed as a first or
second digit following a direct trunk access code (special numbers
excepted). New Flexible Code Restriction tables can be used to deny or
allow certain calls on these routes.
Nortel Communication Server 1000
Features and Services - Book 1 of 6 (A to B)
NN43001-106 01.04 Standard
Release 5.0 27 July 2007
Copyright © 2007, Nortel Networks
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