
202 Chapter 21 Programming BRI S-loops, lines, and ISDN devices
NN40020-603NN40020-603
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 188.
• Sampling
• ONN block state
2 On the bottom panel, identify which ISDN DNs to associate to the loop (“S-loops assigned
DNs” on page 193) (Default DNs: 597-694; additional DNs: 565-597, change type to ISDN):
• 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 204.
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, see “DN records
parameters” in the Device Configuration Guide (NN40020-300).
ISDN devices have a DN range that is unique to ISDN devices.
Process map
Figure 64 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 204
• “ISDN overview” on page 535
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