Symptom Suggestion
You cannot register 
the handset at the 
base.
Charge the battery pack in the 
handset for 15-20 hours.
Make sure you have not stored ten 
handsets already.
De-register the handset (see 
“Resetting Handsets” on page 
33) and register the handset (see 
“Registering Accessory Handsets” 
on page 32). in “Appendix: Handset-
Base Registration” on page 90.
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An accessory 
handset can’t join the 
conversation.
Make sure there are not four 
handsets already using the 
conference feature.
Make sure that another station is not 
in privacy mode.
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The Room Monitor 
feature does not work.
Make sure to place the handset(s) 
within the range of the base.
Make sure that the Room Monitor 
feature is turned on.
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The answering 
machine does not 
work.
Make sure the base is plugged in.
Make sure that the answering 
machine is turned on.
Make sure that the message record 
time is not set to announce only (see 
page 74).
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Time stamp cannot be 
heard.
Make sure you have set the time 
(see “Setting the Date and Time” on 
page 28).
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Messages are 
incomplete.
The incoming messages may be too 
long. Remind callers to leave a brief 
message.
The memory may be full. Delete 
some or all of the saved messages.
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