Nortel Networks NN43001-106 - Manual (Page 157)

Feature description 157
• allowed access to toll calls on CO/FX/WATS trunks placed using BARS
or NARS or CDP access codes. NFCR tables, if programmed on the
routes, are ignored for CTD users dialing Electronic Switched Network
(ESN) access codes.
• allowed toll calls and special number calls on TIE trunks, unless NFCR
tables specifically deny certain digits. Direct trunk access is permitted
as well as BARS or NARS access. NFCR tables deny calls for these
users only if direct TIE trunk access codes are used.
Conditionally Unrestricted Service (CUN)
• allowed access for calls placed through Automatic Number Identification
(ANI) trunks
• denied access for all other types of outgoing calls
Unrestricted Service (UNR)
• allowed to originate and receive calls from the exchange network
The eight possible Class of Service Access Restrictions are described in
Table
Table 2 "Class of Service Access Restrictions chart" (page 157) .
Table 2
Class of Service Access Restrictions chart
UNR CTD/CUN TLD SRE FRE FR1 FR2
Incoming
trunk calls Yes Yes Yes Yes No
Yes, if
using call
modifica-
tion. (See
FRE )
No No
Outgoing
non-toll
trunk calls Yes Yes Yes No direct
access
Yes, if using
attendant
or UNR
telephone
No direct
access
Yes, if
using UNR
telephone
No No
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
.