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*6 If you select one of the melody ringer tones, the ringer tone continues to play for
s
everal seconds even if the caller has already hung up. You may either hear a
dial tone or no one on the line when you answer the call.
*7 The preset melodies in this product are used with permission of © 2009
Copyrights Vision Inc.
*8 KX-TG6631 series: page 3
*9 KX-TG6641 series base unit
You can adjust the contrast of the base unit display by performing the following
operation.
MDISPLAYN a MbN: “Contrast” a M
N a MbN:
Select the desired setting.
a M
N
*
10 Turn this feature off if you prefer not to hear key tones while you are dialing or
pressing any keys, including confirmation tones and error tones.
*11 KX-TG6641 series: page 3
*12 If you subscribe to a Caller ID service and want to view the caller’s information
after lifting up the handset to answer a call, turn off this feature.
*13 The flash time depends on your telephone exchange or host PBX. Contact your
PBX supplier if necessary. The setting should stay at “700 ms” unless pressing
MFLASHN fails to pick up the waiting call.
*14 Generally, the line mode setting should not be changed. This setting
automatically maintains receiver volume at the proper level depending on the
current telephone line condition. Set the line mode to “A” if telephone line
condition is not good.
*15 The handset can display the Internet address where you can download the
operating instructions or get further information for this product, using your
computer.
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For assistance, please visit http://www.panasonic.com/help
Programming