Nortel BCM 3.7, Manual

Page: 872 / 1004

872 ISDN Programming
N0008589 3.3
7
If you are configuring auto-answer BRI trunks to map to target lines, program the received
number for the target line (see
“Assigning target lines” on page 297 ) to be the same as the
Network DN supplied by your service provider (Loops, Loop XXX, SPIDs, SPID 1, Network
DN).
Program the ISDN terminals and devices with the appropriate ISDN DNs and terminal SPIDs
by following the instructions that come with the devices. For more information see
“Program
ISDN Equipment” on page 874 . If you are setting up a D-packet service, program the
point-of-sale terminal adapter or other D-packet service device with the appropriate TEI from
your service provider, terminal SPID, and DN by following the instructions that come with the
device.
Program PRI Lines
When the hardware configuration is complete, your PRI lines are ready to be programmed. For
information on programming your PRI lines, see
“Provisioning for Call by Call limits with PRI”
on page 352 .
Program ISDN BRI Lines
When the hardware configuration is complete, your BRI lines are ready to be programmed in the
same way as analog lines. You can, for example, place them in pools and assign them to Business
Communications Manager telephones and ISDN terminal equipment. However, there are some
differences in the way BRI lines work that will influence how you configure them to handle
incoming and outgoing calls.
For BRI lines, in most cases, your service provider supplies two SPIDs – one for each B channel.
Each SPID and one or more Network DNs are associated with a single line. Calls to a Network DN
come in on a specific line, and pressing a line button selects the same line every time.
If your service provider supplies you with a single SPID for both B channels, incoming and
outgoing calls are handled according to the loop. The two lines provided by the BRI loop are
“pooled” for both incoming and outgoing calls.
For example, if Loop 201 is programmed with a single SPID, which supports lines 061 and 062,
incoming calls made to a Network DN associated with the SPID appear on either line 061 or line
062. If you press the line button for line 061, either line 061 or line 062 is selected. For loops
which use a single SPID, assign both lines on a loop to a set to guarantee that all calls appear at the
set.