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Problem
A call cannot be received.
The audio from the other unit cannot
be heard.
The audio is interrupted.
Q4: Other problems
Problem
The audio output is delayed.
The unit generates feedback noises.
The password is forgotten.
Cause
The connection mode settings of this unit and
the other unit are different.
The IP/SIP settings of this unit and the other
unit are different.
The SIP server is not running.
The microphones are muted on the other
unit.
The required bandwidth is not reserved.
A network fault occurred.
The LAN cable is not connected properly.
Cause
The required bandwidth is not reserved.
The unit is located against a wall.
An object is placed near this unit.
This unit is used in a room with high
reverberation.
Troubleshooting
Remedy
A unit in the mesh connection mode cannot
communicate with a unit in a cascade
connection mode. Set the two units to the
same connection mode (page 27).
A unit using the SIP address cannot
communicate with a unit using the IP
address. Enable or disable the SIP server
operation as required so that both units use
the same type of address (page 27).
Consult your system administrator.
Cancel mute on the other unit.
Check that the bandwidth required for
communication is reserved (page 8).
Wait until the fault is released.
Consult your system administrator.
Check that the LAN cable is connected
firmly.
Remedy
Check that the bandwidth required for
communication is reserved (page 8).
Locate the unit at a certain distance from a
wall.
Avoid placing an object in front of the
microphones.
Place objects with high sound absorbance in
the room by avoiding the positions in front of
the microphones.
Avoid talking at a loud voice to reduce
reverberations.
Reset this unit to restore the factory settings
(page 50).
49
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