Hardware
Symptom
Probable
Cause
Corrective Action
Faulty power
connections.
Verify the following:
•
Ensure power is applied to the power unit.
•
Ensure you are not using crossover Ethernet
cables.
•
Ensure that the input Ethernet cable is connected
to the Data In port of the power unit.
•
Ensure that the output Ethernet cable is
connected to the Data and Power Out port of the
power unit.
•
Ensure that the input and output cables of a port
pair are used for the same IP Phone.
IP device
does not work,
and both
Port Status
LEDs are OFF
(Power unit is
not detecting
IP device).
Wiring
problem
OR
faulty IP
device
OR
faulty Power
Unit.
1.
Verify you are using a standard UTP Category 5, 6
or 6e cable (with 8 wires–4 pairs).
2.
Verify that you are not using a crossover cable.
3.
Verify that the connections for the port pair both
correspond to the same IP device, and that the
port connections are not reversed.
4.
Verify that the cables connected to the Data In
and Data Out ports correspond to the same IP
device.
5.
Connect the IP device to a different port pair on
the Power Unit. If the device works normally, the
original port is probably faulty.
6.
Connect the IP device directly to the Power Unit
using a short cable. If the device works normally,
the original cable (or one of its connectors) is
faulty.
7.
If possible, connect the IP device to a different
Power Unit. If the device works normally, the
original Power Unit is probably faulty.
Document Version 1.0
83
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 ...