
230 Chapter 20 Programming BRI S-loops, lines and ISDN devices
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To set BRI properties for ISDN device connections
1 On the top panel, identify the loop as an S-loop. Refer to “Configure loop type and general
parameters” on page 233.
• Sampling
2 On the bottom panel, identify which ISDN DNs to associate to the loop (see “S-loops assigned
DNs” on page 238) (Default ISDN DNs: 365-396):
• Assigned DNs
• Loop DN (must be on the Assigned DN list). If you set this field to None, unanswered
calls are dropped. If the field is left blank, Assigned DNs make and receive data calls.
3 Configure the ISDN DN records for the device(s) assigned to the loop. Refer to “Configuring
an ISDN telephone DN record” on page 232.
DN records: ISDN devices
ISDN telephones and devices have a limited feature set. They do not have programmable buttons
or user preferences, and do not support call forward features. However, you can assign Answer
DNs and some capabilities features.
For a detailed description of DN record panels, and DN record procedures, refer to “DN records
parameters” in the BCM 4.0 Device Configuration Guide (N0060600).
ISDN devices have a DN range that is unique to ISDN devices.
Process map
Figure 75 provides an overview of the ISDN DN record configuration process.
Task: Determine the programming for individual telephones and devices attached to BRI
module S-loops.
• “Configuring an ISDN telephone DN record” on page 232
• “ISDN overview” on page 709
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