Nortel Modular ICS 7.1, Инструкция по установке

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Working with ISDN /
81
N0130943 02 Modular ICS 7.1 Installer Guide
with the appropriate TEI (provided by your service
provider), terminal SPID, and DN by following the
instructions that come with the device.
Programming ISDN PRI lines
When the configuration programming under
Hardware
is
complete, your PRI lines are ready to be programmed. For
information about programming your PRI lines, see
Call by
Call service for PRI on page 472.
Programming ISDN BRI lines
When the configuration programming under
Hardware
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 system telephones, or 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.
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 001 and 002, incoming calls
made to a Network DN associated with the SPID appear on
either line 001 or line 002. If you press the line button for