One of the 5 handsets has lost the audible tone when dialing or using any function. Can you help with the fix?

There are a few reasons to get a line in use message; the message indicates that the phone does not detect a dial tone. For a simple corded phone, the problem could be the phone wire, the jack, the wiring between the jack and the incoming service or the service line. For all phone types, I use a simple corded phone for some of the testing. Try a new RJ-11 cord between the jack and the phone. Do you hear a dial tone? Make sure that you didn't use a handset cord in the place of the RJ-11 cable. Try a different phone. If there is a dial tone, replace the first phone. If you have another jack on the same phone line, try using the test phone at that jack. If you have a dial tone at the second jack, you have a wiring problem at the first jack or in the wiring to that jack. If you do not have a dial tone, find your incoming phone service box. If you are lucky, you have RJ-11 jacks inside the box. Plug your test phone into that jack and check for a dial tone. If you have a dial tone, you have a wiring problem. If there is no dial tone, the problem is the outside line. If you have a DSL line, check the DSL filter. If it's inside, you may need to replace it. If it's in the service box, ask your phone company to check it.

If you have a cordless phone system, you can have additional problems beyond those for a corded system. Check if the base has power. (Is the power transformer warm or cold?) If that is plugged in and cold, check if there is a switch or circuit breaker that is off. Replace the transformer if the power was good and check the phone again. If the transformer was warm, then check if the handsets were too far from the base. Move into the room with the base and see if the handset and base can communicate. You may want to check the find handset option. If the handset doesn't respond, check if the handset is registered with the base. You may need to replace the phone system. (If it is under warranty, contact Panasonic.)

If you have a problem with a specific jack, you can remove the face plate and check for loose wires. Some jacks use a keystone. These wires will need to be pushed back into the keystone with a push-down tool that is available at most hardware stores in the electrical section. The other type of jack uses screws to secure the wires. You need to strip the conductors and secure them in the correct position. See https://www.lanshack.com/wire_phone_jack.aspx for the wiring diagram. (If you have the wires connected to the wrong pins, your phone won't detect the dial tone or the call signals.) If the problem is inside the walls, you may want to have the wiring done by someone else. There will be a service charge but it's often easier than accessing all of the wiring yourself. (If you have a single story home with an open basement to inspect the wiring, then it could be easy.) If the problem is at the service box and outside, then your phone company should fix the problem for free. (Some companies don't won't to do this and may try to sell you a service upgrade if you have copper wiring.)

I've lost dial tone to all of the wired phones from: a contractor who cut a wire while digging and rodents who chewed on the underground wires. A lightning strike took out the DSL filter once and killed the voice line. Since upgrading to fiber optics, I still lost the dial tone intermittently due to a faulty modem in the service box. I've lost a single phone extensions from someone using a handset cord (simple fix) and a service upgrade where the technician didn't connect all of the phone cables to the service box at the end of the job. Since the wire was loose behind the vinyl siding, it was easy to fix.

I hope this helps.

Cindy Wells

Check out the settings there may be a setting for key pad tone. (off).

First, does another phone get a dial tone at the jack in question? (I prefer an old corded phone for this test since it is unlikely to have some of the problems of a cordless.) Try a new phone cord between the base and the jack. If there is no dial tone, try the test phone at other jacks. If there is no dial tone at any jack with either phone, find where your telephone service comes in and open the service box. If you are lucky and have a fairly new connection, the service box will have RJ-11 jacks. Plug your test phone into the jack and check for dial tone. Otherwise you will need the phone company to do this test. If there is no dial tone at the service box, your phone company will fix the problem for you for free.

If your test phone works:
Make sure that the base is plugged into a working outlet (no tripped circuit breaker, turned off power strip). Next check that the handsets are registered with the base. To register the handset, press the Find HS button on the base (below the in use indicator) for 4 seconds, then press # on the handset. (Our cordless phones once lost their registration during an extended power outage.) You can force deregistration by pressing and holding Find HS for 10 seconds. The In Use light should come on and flash. Then release the Find HS button and then press and release it again while the In Use light is blinking. You may need to try unplugging the base after pressing Flash/Talk and then Off/Clear before deregistering the handsets. The register the handsets.

You can Mute the microphone on the handset with the Mute button. To silence the ringer, press Menu/Select when the handset is not in use. Use the up/down arrow keys to select Ringers then press Menu/Select. Then press Menu/Select to choose Ringer Volume. Use the up/down arrows to change the volume and then press Menu/Select to confirm and save the setting. This should not change the ability to hear the dial tone.

If your test phone works at the service connection but nowhere else, then you have a wiring problem inside. Check exposed wires if you have them. Your phone company will offer to fix the issue for a fee. If the problem is at one jack, open the faceplate and check for loose wires. Some faceplates use a keystone with a punch-down tool to secure the wires. Others just wrap the wire around a screw for each pin.

If the handsets are registered and the base has power, then the cordless phone has problems. If it is under warranty, have it fixed. Otherwise, replace it; they aren't made to be user serviced.

The manual is available here: http://www.vtechcanada.com/support_docs/vtt/CS/CS6319_en_cib.pdf .

I hope this helps.

Cindy Wells

try another phone it works perfectly you need to get the phone fixed it doesnt work call your home provider technical surport good luck

no dial tone mean the internal excitier is bad and yes they can be defective from the start

if you can get dial tone with another phone, look into manual for any instructions, usually a toll free number for help. ( BEST ) otherwise take phone back for exchange. may be problem in the board.

1) When the phone is in standby mode, press and hold the caller id/menu key.
2) Press the vol/ / key three times to select Dial.
3) Press the select key to toggle between Tone and Pulse.
4) Press the end key or return the handset to the base unit to complete the setting. The handset returns to standby mode.

This phone also has a feature that allows you to use Pulse dialing to make calls, but allows you to switch to tone dialing for automated systems (like “Please Press 1 for English) here are the steps for that:

Initially make your call with the pulse dialing mode. Once your call connects, press
the */tone key. Enter the desired number. These digits will be sent as tone dialing.
Once the call ends, the tone mode is canceled and pulse dialing mode resumes.

I was having the same problem with the same model phone, and fixed the problem by rebooting the phone – unplugging the AC and phone cord from the base station and plugging both back it, then removing and replacing the handset to regenerate the security code.

I have the problem. I think it is because the battery i have in it was a Ni-MH and it should be a Ni-Cd. I am now looking for the right baterry Good luck Frank [email protected]

2/29 Have you registered or re-registered the handset?
"No link" can mean handset is not accepting radio wave of base unit. At Mfgr website pull-down operator's manual and look for registration instructions. Some sequence of buttons will create a radio signal from base (have handset off base) then another sequence of buttons on handset will accept radio signal. If handset has "menu" button, try "menu", then "00" (zero zero) then select an accept or "OK" button. Good luck.