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Troubleshooting
13
Di152f/Di183f 13-7
Calls Cannot Be Sent
Symptom Possible Cause Remedy
Nothing can be heard from the
connected telephone.
The cord from the
telephone is not connected
correctly to the main unit.
Correctly connect the
telephone cord to the main
unit.
The telephone cord from
the wall jack is not
connected correctly to the
main unit.
Correctly connect the
telephone cord from the
wall jack to the main unit.
Transmitting. Check again after the
transmission is finished.
After dialing, the ringing cannot
be heard.
The telephone dialing
system is not set correctly.
Correctly set the telephone
dialing system. (p. 3-34)
After the [Speaker] key is
pressed, it is difficult to hear the
recipient/caller’s voice.
The monitoring volume is
too low.
Increase the monitoring
volume. (p. 10-49)
The ringing of the telephone is
too low (loud).
The ringer volume of the
connected telephone is set
too low (loud).
Adjust the ringer volume of
the connected telephone.