Nortel Networks NN43001-106 Last Number Redial, Network Alternate Route Selection (NARS)/Basic Alternate Route Selection (BARS), New Flexible Code Restriction, Outpulsing of Asterisks and Octothorpes, Remote Call Forward

Feature interactions 423

Flexible Feature Codes

Flexible Feature Codes containing an asterisk (*) or an octothorpe (#) will

always be allowed by OCB. Therefore, FFCs which can be used to make a

call should be entirely numeric if barring of them is required.

Some FFCs are equivalent to Special Preﬁx functions and these is subject

to barring based on the equivalent Special Preﬁx codes, even if the FFC is

entirely numeric.

Last Number Redial

Barred DNs is stored by Last Number Redial (LNR). DNs re-dialed using

LNR are checked against the active OCB level.

OCB Flexible Feature Codes are not stored as the last number dialed.

Calls made through NARS or BARS that result in local termination may

not be barred based on the full dialed digits. They is barred based on the

resulting local digits. Calls to a Local Steering Code will use the full dialed

digits, as well as the resulting termination. Calls to the Home Location

Code (HLOC) is barred based on the AC1 and HLOC, and then barred

separately based on the local DN. Other local terminations include calls to

an Numbering Plan Area (NPA) or Home Numbering Plan Area (HNPA)

that use Supplemental Digit Restriction and Recognition to recognize a

Local Direct Inward Dialing (DID) number, and calls using a Route List Block

which terminate using the LTER option.

Outgoing Call Barring uses New Flexible Code Restriction (NFCR) trees to

deﬁne the digit sequences that are not allowed for each level of barring.

However, OCB analyses all dialed digits, whereas NFCR only analyses

digits outpulsed on trunks. This means that the same tree will not normally

be usable for both features, unless only Coordinated Dialing Plan trunk calls

are to be blocked for both features and no digit manipulation is done.

The NFCR trees used for Outgoing Call Barring are allowed to contain

asterisks and octothorpes when the Outpulsing of Asterisk and Octothorpe

(OPAO) package 104 is equipped. These special digits will only be used for

processing dialed digits on routes with OPAO allowed.

Activation of CFW to a barred DN by Remote Call Forward is permitted,

since the user has had to dial the Station Control Password, which could

also have been used to deactivate OCB.

Nortel Communication Server 1000

Features and Services Fundamentals — Book 2 of 6 (C)

NN43001-106 02.04 Standard

Release 5.5 9 May 2008