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Problem Cause & Solution
When an extension telephone
is connected, I cannot receive
documents by pressing
MGNMBNM9N.
R You must set remote fax activation to ON (feature #434 on page 52)
beforehand.
R Press MGNMBNM9N firmly.
R You may have changed the remote fax activation code from MGNMBNM9N
(default setting). Verify the remote fax activation code (feature #434 on
page 52).
I cannot hear a dial tone. R The telephone line cord is connected to the [EXT] jack on the unit. Connect
to the [LINE] jack (page 12).
R If you use a splitter/coupler to connect the unit, remove the splitter/coupler
and connect the unit to the wall jack directly. If the unit operates properly,
check the splitter/coupler.
R Disconnect the unit from the telephone line and connect a known working
telephone. If the working telephone operates properly, contact our service
personnel to have the unit repaired. If the working telephone does not
operate properly, contact your telephone company.
R The power cord or telephone line cord is not connected. Check the
connections (page 12).
R If you connected the unit through a computer modem, connect the unit
directly to a telephone line jack.
I cannot make calls.
R The dialing mode setting may be wrong. Change the setting (feature #120
on page 17).
The unit does not ring. R The ringer volume is turned OFF. Adjust it (page 18).
The other party complains
they only hear a fax tone and
cannot talk.
R FAX ONLY mode is set (page 37). Tell the other party the number is only
used for faxes.
R If you use a Distinctive Ring service, make sure you have set the same ring
pattern assigned by the telephone company (page 44).
The MRedialN or MVN button
does not function properly.
R If this button is pressed during dialing, a pause will be inserted. If pressed
immediately after a dial tone is obtained, the last number dialed will be
redialed.
The receiving mode does not
function properly.
R Distinctive Ring is set (feature #430 on page 44).
Whenever I try to retrieve my
voice mail messages, I am
interrupted by the fax tone.
R You are probably entering MGN MBN M9N. This is the default setting for the
fax activation code. If you use a voice mail service, turn the fax activation
feature OFF or reprogram the activation code (feature #434 on page 52).
I cannot receive a fax
document on the computer.
R Make sure the PC fax reception (feature #442 on page 53) is set beforehand.
11.3.6 Using an answering machine (KX-MB1520 only)
Problem Cause & Solution
I cannot receive documents
automatically.
R Your greeting message on the answering machine is too long. Shorten the
message. Record a message less than 10 seconds long.
R The answering machine rings too many times. Set to 1 or 2 rings.
I cannot receive voice
messages.
R Check if the answering machine is turned ON and connected to the unit
properly (page 39).
R Set the number of rings on the answering machine to 1 or 2.
I pressed the remote access
code to access the answering
machine remotely, but the line
was disconnected.
R The code may include “#” which is used for certain features provided by
telephone companies. Change the code on the answering machine to
another number which does not include “#”.
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For assistance, please visit http://www.panasonic.com/help
11. Help