Trunking
Symptom
Probable Cause
Corrective Action
Embedded MSDN/
DPNSS links are “not
seizable” and the red
LED is ON.
Faulty configuration or wiring.
Ensure that the T1/E1
cable is plugged into the
correct RJ-45 port on the
T1/E1 MMC.
Verify that the T1/E1 cable
is correctly wired. Note
that 1&2 and 4&5 are the
relevant pins for the cable.
Toggle the “Termination
Mode” setting in the Link
Descriptor Assignment
(either NT or LT). This
change takes about 15
seconds to take effect.
Embedded MSDN/
DPNSS links are “not
seizable” and the green
LED is ON.
Faulty configuration.
Ensure that the “Address
for Message Control”
field in the Digital Link
Descriptors form is set
appropriately (either “A” or
“B” depending on the far
end).
If the configuration is
correct, wait for about
1 minute until the every
circuit has finished
negotiating with the far
end.
High number of slips.
Incorrect configuration of
Network Synchronization form.
Ensure that the
synchronization source
being selected is to a
digital PSTN trunk (like PRI
or T1/D4).
Document Version 1.0
181
Troubleshooting Guide
Summary of Contents for MiVoice Business 3300 ICP
Page 1: ...MiVoice Business Troubleshooting Guide Release 9 4 SP1 Document Version 1 0 June 2022 ...
Page 10: ...Introduction Document Version 1 0 Troubleshooting Guide 4 ...
Page 45: ...Figure 4 DNS setting on MSL server manager ...
Page 323: ...Diagnosing Problems Document Version 1 0 317 Troubleshooting Guide ...