Bchanseq; Call-By-Call Routing - Nortel ICS Install Manual

The Network Specific Facilities (NSF) information element is used to
request a particular service from the network.
• When you select
service.
• When you select
unbanded OUTWATS calls.
• When you select
CbC services.
4. Press '. If the display shows Clear Routes,
press Y (yes) to confirm your selection.

BchanSeq

B-channel sequence allows you to select either ascending or
descending. You need to choose the opposite setting of your
service provider.
However, if all lines for two DTI cards (configured as PRI) are
in the same PRI pool, then both cards must be set to use the
descending B-channel sequence mode. As a result, the service
provider must use ascending mode
Press CHANGE to select either ascending or descending.

Call-by-call routing

By default, incoming calls are routed based on the Called Party
Number. You program the received number length to include
however many digits your system requires. This many digits
from the end of the called party number are then used as
Received Digits to find a target line.
For example, the incoming calling party number is
800-555-1234. The received digit number length is 4.
Therefore, 1234 is used to route the call.
Depending on the protocol and the service, alternate routing
maps may be defined.
N0130943 02
NONE
, the NSF extension bit is not set for any
WATS
, the NSF extension bit is set for
ALL
, the NSF extension is always set for all
Hardware / 499
Modular ICS 7.1 Installer Guide