Instruction manual

Page 1006 of 3156 China – Flexible Feature Codes
553-3001-306 Standard 10.00 January 2002
Digit Display
Meridian 1 proprietary telephones with displays do not display the OCB level
and the Station Control Password (SCPW) when OCB FFCs are dialed. This
protects the security of the SCPW.
Flexible Feature Codes
Flexible Feature Codes containing a “*” or an “#” 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 will be
subject to barring based on the equivalent Special Prefix codes, even if the
FFC is entirely numeric.
Last Number Redial
Barred DNs will be stored by Last Number Redial (LNR). DNs redialed using
LNR are checked against the active OCB level.
OCB Flexible Feature Codes are not stored as the last number dialed.
Network Alternate Route Selection (NARS)/Basic Alternate Route
Selection (BARS)
Calls made through NARS or BARS that result in local termination may not
be barred based on the full dialed digits. They will be 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) will be 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.
New Flexible Code Restriction
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.