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Troubleshooting
Symptom
Handset does not respond
to repeated button
presses.
Background noise while
on a call.
In a multiple handset
installation (2–6
handsets), all handsets
seem to have developed
interference problems at
the same time
††
.
Possible Cause
There was a recent
occurrence of lightning or
a power failure.
Radio frequency
interference.
There was a recent
occurrence of lightning or
a power failure.
Possible Solution
Remove the battery from the handset for
10 seconds, then replace it
††
.
Remove the handset from the base and
then replace it for 10 seconds
†
.
Unplug the line cord from the base for
one minute, then reconnect it
†
.
Check to see if the radio module is
receiving power
††
.
Unplug the base from the AC outlet for
one minute, plug it back into the outlet,
and place the handset on the base for 10
seconds
†
.
Relocate the base
†
.
Unplug the power supply to the radio
base station. Wait for 10 seconds.
Reconnect the power supply to the outlet.
† MDC 9000 cordless telephone only.
†† MDW 9000/9010 wireless telephone only.