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My panasonic portable phones have the message "check tel line" "missed call" I have no dial tone. Please help.

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Kindly mention the make and model and the complete details such as how old the unit is, when you start facing this challenge and so on!!


Posted on Jul 17, 2010


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Panasonic PNLC1017, our landline telephones do not work. I've changed batteries, the phone screen reads check tel line. Please help!

The PNLC1017 is the charger for the handset of some Panasonic cordless phones. One of the compatible handsets is the KX-TGA660 which works with the KX-TG4112 system.

However, the 'Check tel line' message indicates a problem at the base or the POTS (Plain Old Telephone Service) telephone line. The system is not hearing the dial tone. Check that the power adapter is plugged in to a live outlet and is warm. If it's cold, than the power transformer is not working and the base has no power. If there is power, check if the handset message disappears when the handset is close to the base. This is usually rare but indicates a transmitter/receiver in the handset or base is not communicating properly. You can try to de-register all handsets and then register them again.

To check the phone line, I prefer to use an older corded phone. These don't require power to work. First, try a new phone data cord (RJ-11) between the base and the wall jack. (I've seen someone accidentally use a handset cord which doesn't work.) Test if there is a dial tone when this cord is plugged into the test phone. If there is a dial tone, then if the cordless phone base didn't work with the replacement cord, the base is faulty. Replace it or contact Panasonic if the system is under warranty. If you have a DSL fliter, this may be damaged. If it's inside, replace it. If it is in the service box, ask your telephone provider to check it.

If there is no dial tone, you need to locate the other phone jacks for that phone line. Find where your phone service comes in as well. Check if there is a dial tone on another jack for that phone line. If there is no dial tone, check the service box for an RJ-11 jack, Test for a dial tone there if you can plug in the RJ-11 cable. If you have a dial tone at another jack, then the problem is local to the first jack's wiring. You can open the jack and check for loose wires. There are two styles of jacks - screws or punch-down. For the screw terminal, strip the insulation and wrap it under the appropriate screw. For the punch-down keystone jack, you need a punch-down tool. The tool is available from most home improvement/building supply stores, in the wiring section. Do not strip the wire. Use the tool to press the wire down into the correct slot on the jack. See for the wiring diagram.

If you can't test the phone line or there is no dial tone at the service box, then you need to contact your telephone provider. It used to be that the provider would always test and fix outside problems for free. Some telephone companies are trying to stop repairing copper wiring. If you have a dial tone at the service box, then the problem is somewhere in the inside wiring. You may want to get someone to find a broken wire in the wall for you. Your telephone company service technicians will do this for a fee.

I hope this helps. I've had the check tel line issue times several times at my home. Twice, the outside line was damaged by mice and repaired by my telephone company. Once, a lightning strike damaged the DSL filter; it was promptly replaced. Other times, the line was damaged by contractors digging too close to the underground utilities. The contractors got the wiring repaired. When our service was switched to a fiber-optic system, we lost one telephone jack when the installer simply didn't plug in the wire. We found the loose wire behind the siding and plugged it into the port in the service box ourselves. Since then, we lost telephone and other service intermittently when the modem card in the service box was failing. That was also replaced by the telephone company technician.

Cindy Wells

Sep 01, 2018 | Panasonic Lands Phones

1 Answer

My Panasonic corded phone says checl tel line I cannot get a dial tone,

Could be line trouble. This can be confirmed by connecting another telephone directly to the line. If there is no tone, a telco technician has to be called.

Apr 14, 2017 | Panasonic Lands Phones

1 Answer

All phones are plugged in and operating but i get a busy signal on all in talk mode

I assumed when you say all phones are operating means there's power and are charging.
1. There could be some phones that are loading the Tel line. Disconnect all phones and plug it one by one while checking the dial tone. If all phones gives busy tone, there coulb be a problem in the Trunk line or the Tel Company line.
2. There could be a short or resistance in the line. Check the connection in junction box between your house and the Tel Company cable.
3. If you have an analog Tel set, you can check the dial tone directly from Tel Company cable that comes in to your house.

I hope this helps.
Best Regards.

Sep 01, 2015 | Panasonic KX-TGEA20 Additional Digital...

1 Answer

Phone displays error message "check tel line

The phone is not detecting dial tone on the line. Are you able to hear a dial tone? If not - disconnect the cable at the phone and plug into a different phone. If it works, then the problem is with the Panasonic phone - if it doesn't work - the problem is with the cable, jack, wiring, etc.

Mar 12, 2015 | Panasonic Lands Phones

1 Answer

Message displays "check tel line". All


What you need to do first of all , put of the phone then disconnect it from the power supply allow he phone for about five minute ,then put it on again check the phone respond on your command if the problem remain same or solve.

Note if the problem remain then you will need to send me the name and the mode /serial number of the phone to guide you further.


Sep 06, 2011 | Panasonic Lands Phones

2 Answers

Panasonic KX-T7433

These phones are digital proprietary telephones which means that they only work on panasonic telephone systems and not on normal analog lines. If you have a panasonic system the correct way is to plug the line into the " To Main Unit ", the handset into " Handset/Headset" and a normal analog phone into " To Tel ". If the wiring on the line jack was not done digitally the phone will also not work

Feb 16, 2010 | Panasonic KX-T7736 Corded Phone (KXT7736)

1 Answer

Message reads: "Check tel line"

You can remove your telephone line from the base unit and fix it to stranded telephone unit and hear the dial tone.If it heard then some inductor or else part may be broken inside the base unit due high current surge.If the dial tone didn't heard from the other phone also check for the corroded line cord or modular box fault with the tel line.There should be 30 Volt-50Volt D.C.Voltage at your wire ends.

May 18, 2009 | Panasonic KX-TG1033S Cordless Phone

1 Answer

Change pulse into tone

Go to the menu and choose Tel line and the go to set dial mode and then choose the dial mode like dial or pulse mode

Nov 22, 2008 | Panasonic KX-TG2631 Cordless Phone

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