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Feature Reference
ISDN service
1586 Administrator’s Guide for Avaya Communication Manager
November 2003
Call Identification Display
Two types of identification numbers are provided with ISDN and may be used in the various types of
displays used with ISDN. The two types of identification numbers are as follows:
•
Calling Party Number (CPN): A 0–15 digit DDD number associated with a specific station. When
a system user makes a call that uses ISDN, that user’s CPN is provided by the system for ISDN.
ISDN public-unknown numbering or ISDN private numbering screens are administered to create
a 0–15 digit CPN from a local station number.
•
Billing Number (BN): The calling party’s billing number, which is provided to an inter-exchange
network via Equal Access or CAMA. This number is stored at either a local or network switch. If
a customer is connected directly to the AT&T Switched Network, the BN is the customer’s billing
number stored in that network. If the CPN is not provided on an incoming ISDN call, the network
uses the BN for the station identification number.
The following types of display information are provided with ISDN:
•
Calling Party’s Number
The calling party’s number appears on the called party’s display. This number is provided only if
the outgoing ISDN trunk group is administered to send the CPN, and if ISDN public-unknown
numbering or ISDN private numbering screens are administered to create a CPN. On calls
incoming to a system, the network may provide either the CPN or BN as the calling party’s
number. Extensions and 12-digit international numbers display without dashes. Dashes are only
used for 7-digit and 10-digit numbers when North American Area Code is enabled on the Dial
Plan screen.
•
Calling Party’s Name
The calling party’s name appears on the called party’s display. On calls generated from a
DEFINITY server, the caller’s name is provided if the ISDN trunk group is administered to send
the name to the network. On calls incoming to a DEFINITY server, the (public or private)
network may provide the caller’s name. If the caller’s name is not available, the called party’s
display shows “CALL FROM” instead, followed by the calling party’s number (if available).
•
Connected Party’s Number
The connected party’s number appears on the caller’s display. On calls generated from a
DEFINITY server, callers’ displays may show the digits dialed as the call is made. If the (public
or private) ISDN network provides the connected party’s number, the calling party’s display is
updated to show the connected party’s number. The format of the connected party’s number is the
same as that of the calling party’s number described previously on calls incoming to a DEFINITY
server. The 0–15 digit number of the party who answers the call is provided to the ISDN network
only if the incoming ISDN trunk group is administered to send connected number to the network
and ISDN public-unknown numbering or ISDN private numbering screens are administered to
create a CPN.
NOTE:
The connected party may be the party actually called, in the event the call is transferred
before the connected party answers the call.