Question about Panasonic KX-TG6700 Cordless Phone

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Panasonic KX-TG6700 loses time and date when the power goes out

Besides using a UPS, how can I avoid constantly resetting the date and time each time the power goes out? Is there an internal battery that I am missing?

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  • Anonymous Dec 26, 2008

    Mine does the same thing with or without a power failure.

  • Anonymous Apr 29, 2009

    mine is KX-TG2362, it keeps losing date and time, without any power outage.



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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: Panasonic KX-TG2740 Cordless Phone - Can I reset handset registration

press function button on handset, scroll to initial setting, select by pressing right arrow, scroll to registration, select, select hs registration, follow directions on handset display, pressing mute on "new" base station, and ok on handset(plugged in). If you like, you can unregister with the "old" base unit first.

Posted on Jan 16, 2008

  • 1 Answer

SOURCE: Panasonic KX-T7456 Corded Phone - Date & Time Display

The display on the phone ... to change back and forth between the date and time, and the extension information, press the "star" (or asterisk) key while the phone is on-hook, this will toggle the display back and forth.

Hope this helps, David B.

Posted on Mar 23, 2008

  • 8 Answers

SOURCE: Panasonic KX - T 7730

look.................. a *****

Posted on Jun 25, 2008

  • 1 Answer

SOURCE: Panasonic KX-TG6700


I have the same problem and I simply open the base (5 screws at the back), disconnect the cable that came from the keypad located (if you see the station from the back) at the left, turn on the base without connecting this cable. After that, I unpluged the station, reconnect the keypad cable and connect it again. Solved.

Posted on Jul 11, 2008

  • 3 Answers

SOURCE: cordless phone does not work

ok i found a solution...

for good measure, unplug everything from the main base, wait a few minutes, then plug everything back in. this never solves the problem, but it's standard troubleshooting procedure.

next, follow the menu instructions on the non-working handset to re-register.

if the re-registration doesn't work, your handset is probably shot. you can buy a reconditioned one on ebay for under $30. take the battery out to find the model #.

Posted on Apr 04, 2009

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Panasonic KX-TG6700


Did you try disonnecting the unit from the power for a few hours?

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How do you change date and time on this model

Please download the manual from the link provided below :,,&target=productDoc&idDeviceType=3401&idMfg=1569&idProduct=615187

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Yes and no. What's it connected to and what time and date is it where you are? The version 2.0 or greater TVA series will save the messages up until midnight.


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In your case there is no problem regarding your cordless phone. The problem might be in your network only. So please contact your network officer immediately.

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We had the same problem. Unplugging the unit and restarting it again solved the problem.

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Most pcb boards ( mother boards) for any type of machines; copiers, printers etc... have a battery on the board to keep the memory when not in use or unplugged. this is only to keep certain functions in memory, ie: memory, time, date, settings etc.
That's what I would suggest changing, you would have to take it apart to get to the board.

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