Troubleshooting - AT&T MDW 9000 Quick Reference

Troubleshooting

Symptom Possible Causes
Handset does not There was a recent
respond to repeated
occurrence of lightning,
[ ] button or a power failure.
On/Off
presses.
Your business has 2
There was a recent
or more wireless occurrence of lightning,
phones installed and or a power failure.
all handsets seem to
have developed inter-
ference problems at
the same time.
Your business has 2 Handsets have been
mixed up.
or more wireless
phones installed and
you (a) cannot deter-
mine which radio
module corresponds
to your handset or
(b) are confused
about which handset
is yours.
Handset range and/
or voice quality is not
as good as expected
in multiple carrier
assembly
installation.
You are on a call and System in Key Mode has
you hear radio all lines set to ring. An
interference when incoming call "wakes up"
another call rings. all of the other radio
modules at the same time
to ring the other phones.
Coverage zones of
carriers overlap.
You moved into the
coverage zone of another
carrier.
9
Possible Solutions
Remove battery from
handset for 10 seconds,
then replace it.
Check to see if the radio
module or carrier
assembly is receiving
power.
Unplug the carrier
assembly's power cord
from the electrical outlet.
Wait 10 seconds, then
reconnect the power cord
to the outlet.
Place the handset in
Wireless Test Mode and
determine the terminal
identification number as
described on page 11. This
is the slot number of the
radio module in the carrier
assembly that corresponds
to the handset, and it is the
terminal identification
number of the handset.
Reinstall one of the
carriers so the coverage
zones do not overlap.
Move back towards the
handset's matching radio
module.
Program some of the
wireless phones for
Delayed Ring or No Ring.