Programming instructions

194
3300 ICP Technician’s Handbook
Network Services Units (NSUs)
Outgoing calls
fail with reorder
tone
Configuration of
ARS or
configuration of
Per Call
Capabilities
Enter the CCS TRACE maintenance
command to ensure that the proper digits
are being sent out.
Check the Digit Modification with the
Per-Call programming for BRI to make
sure digits are not being inserted or
absorbed unnecessarily.
Incoming calls
fail
Configuration of
Trunk forms
Verify in the Trunk Service Assignment
form that there is an Answer Point set up
for non-DDI trunks for Day and Night
services.
For dial-in trunks, verify that the “Dial-in
Trunks Incoming Digit Modification -
Absorb” field is not left blank and that the
“Dial In Trunks - Incoming Digit
Modification - Insert” field is set
appropriately for dial-in trunks.
Table 18: NSU Troubleshooting
Symptoms Probable Cause Corrective Action
NSU fails to come
up after upgrade or
new installation
(Both the red and
amber LEDs, or
just the amber
LED, are marching
between L0/L1)
Automatic NSU
upgrade is in
progress
Wait 15–20 minutes for the NSU
upgrade to complete.
CAUTION: Do not power down
when the amber LED is march-
ing between L0/L1. Powering
down the NSU may corrupt the
NSU software.
NSU keeps
resetting with no
IMAT db error
message
No IMAT database
is saved to the
NSU (PRI/QSIG).
Use IMAT to save the corresponding
database to NSU (PRI/QSIG).
(Page 1 of 3)
Table 17: Embedded BRI Troubleshooting (continued)
Symptoms
Probable
Cause
Corrective Action
(Page 2 of 2)