Nortel Networks Modular ICS 4.0 - Manual (Page 169)

ISDN PRI and BRI / 157
P0881591 Issue 01 Modular ICS 4.0 System Coordinator Guide
Outwats
Outwats is for outgoing calls. This allows you to originate
calls to telephones in a specific geographical area called a zone
or band. Typically a flat monthly fee is charged for this
service.
Inwats
Inwats is a type of long distance service which allows you to
receive calls originating within specified areas without a
charge to the caller. A toll-free number is assigned to allow for
reversed billing.
Consult your customer service representative to determine
whether or not this feature is compatible with your provider.
Dialing Plan and PRI
The Dialing Plan supports PRI connectivity to public and
private networks. The dialing plan is a collection of features
responsible for processing and routing incoming and outgoing
calls. All PRI calls must go through a dialing plan.
The Dialing Plan
• allows incoming calls to be routed to sets based on service
type and digits received
• allows Enbloc dialing by buffering user-dialed digits until
a complete DN has been dialed
• provides the ability to map user-dialed digits to a service
type on a Call by Call basis
• allows long distance carrier selection via user-dialed
Carrier Access Codes
Consult your customer service representative to determine
how your dialing plan is configured.
p0881591.book Page 157 Wednesday, August 19, 1998 6:43 PM