Question about Panasonic KX-T7453 Corded Phone

1 Answer

I need to clear all programming from phone

When trying to use line 2 it comes up invalid. switched phone to another location and it still doesn't work so somebody tried programming the phone and we have no clue as to how to clear it out or set it to default

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert who has written 50 answers of more than 400 characters.

  • Expert
  • 201 Answers
Re: i need to clear all programming from phone

Your phone KX-T7453 can be used on several different Panasonic phone systems that program and set up very differently. You will need to determine which Panasonic phone system you have.

Is this happening on just one phone location or all phones on the system?

If you have a programming manual for your phone system you could make changes or default it if you want to but you should make sure a default is what you want. If you have voice mail or if you have the system set up very differently than default you would be creating a lot of work by defaulting the system. Not even knowing your setup I would highly suggest trying to fix the problem as it is instead of defaulting.

Posted on Nov 16, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

2 Answers

Panasonic KX-T7730, we have a 824 phone system and cordless handsets (kx-tg1711) we cannot make outgoing calls on these handests but can take incoming calls and can transfer calls. how do we programme

  • Locate the program and auto-store button on your telephone. You will be using these to customize many of the features on your KX-T7730. The program button is used to enter or exit programming.

  • 2

    Program your outgoing line preference, i.e., the line you prefer to seize when you go off hook. Press "Program" "1" "1" "store" for no line. Press "Program" "1" "2" "Store" for an idle outside line. Press "Program" "1" "3" "Outside Line Number" "Store" for an assigned outside line. The outside line number will be a single or double-digit number that is set through your phone system.

  • 3

    Program your incoming line preference, i.e., the line you prefer to answer when you go off hook. Press "Program" "2" "1 "Store" for no line. Press "Program "2" "2" "Store" for ringing line. Press "Program" "3" "Outside Line Number" "Store" for an assigned outside line.

  • 4

    Program your flexible CO buttons. These are the inner row of 12 lighted buttons. Your outside lines need to be programmed to these--you can choose any of these 12 buttons in any order. Press "Program" "CO Button" "0" "Outside Line Number" "Store." The outside line number will be a single or double-digit number that is set through your phone system.

  • 5

    Program any other unused flexible CO buttons for an extension number or any frequently dialed phone number. Press "Program" "CO button" "1" "Extension Number" "Store" or "Program" "CO Button" "2" "9 + Phone Number" "Store". A "9" must be entered at the beginning of a phone number to tell your phone system to seize an outside line before dialing, e.g., "9-1-212-555-1234."

  • 6

    Locate the programmable feature buttons (the row of 12 solid buttons on the right). These buttons are basically one-touch buttons that can be set for extension numbers or phone numbers. Press "Program" "(PF) Button" "Extension Number" "Store" or "Program" "(PF) Button" "9 + Phone Number" "Store." Remember to press "Program" again to exit programming.

  • 7

    Locate your "FWD/DND" button. This button is used for setting "Call Forward" or "Do Not Disturb" on your telephone. To set call forwarding, go "off-hook" either by lifting the receiver or pressing speakerphone. Make sure you go to intercom and not an outside line. To forward all calls, go off-hook, press "FWD/DND" "1" "extension number" (the extension number that you wish to forward all your calls to) "#". After you hear a confirmation tone, place the receiver on-hook. The steps to set call forwarding for busy/no answer are the same as above, except you will press "2" in place of "1". To cancel call forwarding, press "0" in place of "1".

  • 8

    Program "Do Not Disturb," which stops your phone from ringing--any callers will just hear a DND tone. To program, go off-hook, press "Program" "4" "#" on-hook, to set. Press "0" instead of "4" to cancel.

  • 9

    Locate the message button--this works in coordination with your message light at the top right of your telephone. If the light is lit, press "message" to hear a message left to you either by another extension or a voice mail system. The message button can only be programmed as a message or one-touch button. To program as a message, press "Program" "Message" "3" "Store." To program as a one-touch, press "Program" "Message" "1" "Extension Number" or "Program" "Message: "2" "9 + phone number."

  • 10

    Return your KX-T7730 to its default settings by pressing "Program" "#" "*" "Store."

  • Read more: How to Program a Panasonic KX T7730 '

    Nov 23, 2011 | Panasonic KX-T7730 Corded Phone

    1 Answer

    I just installed a replacement At&t EP 5962 2 line, answering answering device telephone. Line 2 does not get a dial tone. I installed it into proper / same as before outlets and both lines light...

    There may be damage to the wiring of line 2 (either in the building or on the phone). Are both lines wired to one jack or are they separate? Do you have any other jacks that have line 2 connected (preferably as single line jack) in the building?

    I like to use an old single line corded phone that does not use a power adapter. (As long as the EP5962 corded base will work without power (POTS), it might work for the tests below. You might want a simpler phone to carry around.)

    If the lines have separate jacks, try switching line 1 and line 2. (Connect your Line 2 jack to the Line 1 input on the phone and vice versa.) If line 2 doesn't give a dial tone when connected to line 1, see the next set of tests. Otherwise, contact AT&T if the phone is under warranty. These phones are not meant to be user-serviced. Alternatively, plug in a different phone to the line 2 jack to test for dial tone.

    Next move to another jack with line 2. Check if you have dial tone at that point. (If you do, you know the problem is at the first jack or the wiring to the jack.)

    If there is no dial tone at the next jack or you do not have another jack for the line, find where your telephone service comes in. Open the service box and determine the type of connections in the box. If you are lucky, you will find RJ-11 jacks for the incoming service. Plug in your test phone and check for dial tone. If you have no dial tone or can't check the service, then contact your telephone company. They will test your line and fix it free if the probIem is outside.

    If you have a dial tone, then it's an inside wiring problem. Inspect the visible wires for damage. Open the faceplates for the jacks and check for loose wires. There are two types of connectors. Screw type connectors need the wire stripped back a little then wrap around the screw and tighten. The other type is a punchdown jack. To repair a loose wire in this, you will need a punchdown tool. These are often available in hardware/home improvement stores in the wiring section. has clear pictures of the wire color to pin pattern.

    You may want a professional to check the wires inside the walls. Your phone company will fix problems for a fee.

    Damaged DSL filters on one line could be the cause. Similarly certain animals may have chewed on the specific wires somewhere in the line.

    I hope this helps.

    Cindy Wells

    Jul 23, 2011 | AT&T EP5962 Phone

    1 Answer

    We used to have a guy come in whenever we had phone problems but he retired. One of my co-workers somehow tried to transfer a person to one of our other locations but in the process have put lines 1 and 5...

    When you transfer a call from the outside to an outside place, it will use two external lines for the duration of the call. Sounds like there the PBX is not configured for "disconnect supervision," (DS) meaning that it can't detect when the call finished on either side, so it holds those lines in use. Even if you set DS up on the PBX, the telephone company be sure the lines are programmed for COD (clear on disconnect).

    If you do external transfers, you need to set up disconnect supervision on the PBX and COD from the telephone company.

    This will probably involve the services of a professional, unless you are comfortable navigating the
    internal menus of the PBX.

    You can clear the lines by disconnecting the amphenol connector for the outside lines for a few seconds and reconnecting it (which will disconnect all outbound calls) or by rebooting the PBX.

    Mar 21, 2011 | NorStar M7310 Corded Phone

    1 Answer

    I was storing some extension numbers and spead dial numbers and I must have done something wrong as anytime I pick up handset to make a call a 'reorder tone' message comes up on the display- this is before...

    So don't pick up the handset :-)

    There are some line preference and pickup dial programs that just happen to sit in PROGRAM 1x. My guess is that you have assigned an empty or invalid pickup dial code to the phone.

    Try this first. Press PROGRAM and dial 12 ENTER. Is the Hot Line mode ON? If it is, press SEL and ENTER. Wow. That was easy :-)

    Didn't work? Let's go for Preferred Line Outgoing next. Dial PROGRAM 19 and 3 ENTER. That makes the intercom prime (0 is none, 1 is idle line 2 (xx) is a specific line).

    If you tried both of these, and still no joy, then it's time to reset the phone. The problem with that is you have to dial the code IMMEDIATELY as you're picking up the handset. Good luck with that. The reset code is 79# or 790.


    Jan 25, 2011 | Panasonic KX-T7630 Corded Phone

    1 Answer

    I have 3 lines from our provider, the lines already connected on the PABX. Only 1 line is program.. the other 2 line is not program on the telephone.. can u give me how to program the 2 line in the...

    For a couple of reasons, No. However, if you access system programming, you can look at a couple of program locations to see whether the lines are turned on in software and how the system was restricted. Generally, program 400 assigns CO lines (in a TA cabinet) if the original installer used that method. The lines have to be enabled and appear on a phone to work. If you press lines 2 and 3 on the phone and the display says something, then it probably was the method used to turn them off. The other possibility was that they just restricted access by extension :-(.

    It's a lot of work for nothing. That's changed in the 400's (407-409) IIRC.

    Pick up a copy of your system's programming guide (PG) and it will tell you how to do it.


    Jan 13, 2011 | Panasonic KX-T7730 Corded Phone

    1 Answer

    Reprogramming a business phone

    You will need a professional comdial dealer to reprogram it for you.
    If in NY area contact or

    Mar 18, 2009 | Comdial 8024-S Impact 24-Line Phone

    2 Answers

    No dail tone

    Check the cor and cos setting of the phone It shold have the permissions to call outside

    Dec 02, 2008 | RCA 25414RE3 Corded Phone

    2 Answers


    I bet the problem is that you used to have two phone lines and now you only have one line. You cannot program an extension into one of these phones unless both Line1 and Line2 coming into the phone are working- it will act as if the extension you picked is in use, but the actual thing it is complaining about is that Line2 isn't working. The phones might have been working for years on a single phone line as long as they didn't lose power. But you don't have to throw the phones away just because you gave up your second phone line, you can still make them work. (I did it for a 12 phone system.) The way to to it: make a special cable that connects your single incoming phone line to both L1 and L2 on the phone, tricking the phone into thinking both L1 and L2 are working. Then program the extensions into the phones, and go back to using a normal cable so that only Line1 is hooked up. To make this cable: take a normal male to male cable and cut off one end. Then connect both the black and the green wires of the cable to the green post in a standard phone jack (the kind you would surface mount on the wall will work best), and connect both the yellow and red wires to the rec post inside the phone jack. Now plug your incoming phone wire into the phone jack, and plug the wire you connected into the jack into the back of your phone. The phone is probably already blinking red on the intercom, just push the extension number you want it to have, making sure there are no conflicting extensions already in use.
    I would reconnect the phone using a normal line so that only Line 1 is "hot", don't leave it on this double-connected cable any longer than you need to in order to program the extension.
    Good luck!

    Apr 08, 2008 | GE 2-9450C Corded Phone

    1 Answer

    Line program in trouble

    Here is a link to the instructions in case you don't have them

    have a look at page 2, also the section on "clearing all settings"

    Jan 17, 2008 | Panasonic KX-T7730 Corded Phone

    1 Answer

    Clear speed dial/one touch settings

    There is no way to clear the settings you would have to re-program the correct setting. Did you program one touch speed dial on the line buttons? I do not see how programming a speed dial could effect accessing the CO lines unless you re-programmed the CO line buttons by mistake. If so, you would need to re-program those soft keys to line buttons. The manual you have may not cover this? The phone you have can work on a few different Panasonic phone systems. If you need a more detailed manual you will first need to know which Panasonic phone system you have. The phone part number WILL NOT help you determine which phone system you have. There is a main control unit somewhere (basement, utility closet, etc..)

    Aug 13, 2007 | Panasonic KX-T7431 Corded Phone

    Not finding what you are looking for?
    Panasonic KX-T7453 Corded Phone Logo

    Related Topics:

    125 people viewed this question

    Ask a Question

    Usually answered in minutes!

    Top Panasonic Phones Experts


    Level 3 Expert

    94198 Answers

    Donald DCruz
    Donald DCruz

    Level 3 Expert

    17129 Answers


    Level 2 Expert

    82 Answers

    Are you a Panasonic Phone Expert? Answer questions, earn points and help others

    Answer questions

    Manuals & User Guides