Nortel BCM 3.7, Manual

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Programming Operations Guide
Chapter 10
Configuring BRI Loops
The following sections describe the information accessed under the Services, Telephony
Services , Loops headings. The Loops headings allow you to program BRI S, T, U2, and U4 ISDN
loop settings.
This section includes information about:
• “BRI configuration process map” on page 278
• “Identifying BRI T-loops (T1 profiles)” on page 279
• “Identifying BRI T-loops (ETSI, QSIG)” on page 282
• “Configuring D-packet service for T loops” on page 284
• “Provisioning the loop variables” on page 285
• “Setting BRI for ISDN device connections” on page 289
The Loops screens define the loop numbers and loop attributes that correspond to the DIP switch
settings that were configured on the BRI trunk media bay modules installed on your system. Check
your Programming Record to see which modules are installed, and what settings were chosen.
Available BRI trunk loop attributes are determined by the country profile that is assigned to your
system. All profiles allow BRI programming, however, there is a difference between T1-based
profiles and for E1-based profiles. Refer to
“Core software and regions” on page 834 for a list of
countries and profiles.
Once loops are provisioned, the system assigns two line numbers per loop. These lines are then
programmed as you would any other lines. Refer to
“BRI fields” on page 262 for a description of
the headings that appear for lines defined for BRI loops. Lines programming is explained under
Chapter 9, “Configuring lines,” on page 239 .
The following figure shows a detailed view of the Loops headings.
Figure 61 Loops headings
Task:
Configure the BRI loops connected to the system through BRI modules.
T-loops (North America):
Telephony Services
Loops
Loop 201-xxx
SPIDs
Network DNs
DN 01
D-packet service
TEIs
T-loops (ETSI, QSIG):
Telephony Services
Loops
Loop 201-xxx
D-packet service
TEIs
S-loops (all profiles):
Telephony Services
Loops
Loop 201-xxx
DNs on loop
Assigned DNs
DN XXX