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Identifying BRI T-loops (T1 profiles)
T1-based BRI loops have three parameters that identify loop characteristics.
1
In the Unified Manager, click on the keys beside Services, Telephony Services, Loops.
2
Click on the loop number you want to configure as an ISDN trunk connection.
Figure 63 T-loop screen (T1 profiles)
3
Configure the loop settings according to the following table:
Table 45 Loop settings
Attribute
Value
Type
T
Clock Source
Primary
Secondary
Master
ONN blocking state
Suppression bit,
Service code
Description
Default: Master
This setting determines whether the system uses this module as the clock
source for the network.
Set the Outgoing Name and Number (ONN) Blocking.
When you activate ONN, a user can press FEATURE 819 to block the
outgoing name and number on a per call basis.
Suppression bit: the system flags the call to the Central Office (CO) so
that the name and number is not sent to the person you call.
Service code: VSC digits are dialed out before the called number to
activate ONN at the central office. These codes are supplied by your
service provider for the lines. Refer to
codes" on page
487. PRI lines have only one code, so do not require
specific configuration.
Programming note: Ensure that all telephones that have this feature
available are assigned valid OLI numbers. Refer to
on page
406.
Identifying BRI T-loops (T1 profiles)
"Configuring ONN blocking service
"Assigning line access"
Programming Operations Guide
279
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