
Chapter 5: Troubleshooting
216
Troubleshooting guide
An IP handset
connection
cannot be
established.
The cable is not
properly connected.
Connect the cable.
You have connected
to the ISDN interface.
Remove the cable and connect to one
of the LAN connectors instead.
There is no power
(PoE) in the LAN
interface. The reason
may be that there is
not enough power to
supply PoE for the
LAN interface.
Check that the input voltage is within
the specified range
(10.5 - 32 V DC; 14 A - 5.5 A).
Check that you do not have too many
power-consuming devices connected.
The maximum available output power
on the LAN (PoE) interface is 32 W if
you are using a 12 V supply and 64 W
if you are using a 24 V supply.
If possible, disconnect other
connected devices.
If you have Multi-
voice, see the
following entry in
this table:
Multi-
voice: Voice call is
not put through
.
See the following entry in this table:
Multi-voice: Voice call is not put
through
.
Problem
Possible Cause
Remedy
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