Both lines were functioning previously. Do not no what happened or what to do. Guessing a program has been inadvertently modified.
If you have a Panasonic KX-T7736 phone with one line not producing dial tone, there are a few possible causes. The first possibility is that the phone line itself is the problem.
If you have another phone in the house, try plugging it into the same phone line and see if you get a dial tone. If you do, then the problem is with the KX-T7736 and not the phone line.
The second possibility is that the problem is with the phone's internal wiring. To check this, unplug the phone from the wall jack and plug it into a different jack. If you get a dial tone, then the problem is with the first jack and not the phone.
The third possibility is that the problem is with the phone itself. If you've tried the other two solutions and you still don't have a dial tone, then the problem is most likely with the KX-T7736 and you'll need to contact Panasonic for assistance.
I hope this helps!
SOURCE: i have no dial tone on one line. call my number and it rings
IT IS DUE TO NETWORK FAILURE OF THAT LINE
SOURCE: 2 line phone rca 25205re1 only 1 line works not the rollover line
Most likely the problem is the cord from the wall to the phone. There are two types of cords and they look almost identical. Look closely at the connector. A single-line cord will have only two gold pin at each end. A two-line cord will have four gold pins at each end.
You need a two-line cord to get both lines from the wall to your phone. Since you have had the problem with several phones, that is the most likely cause.
SOURCE: can not get kx-t7885 to get a dial tone
How are you trying to get an outside line? By dialing 9? If the host system happens to be a TA series, you have to tell it how many lines you have, or that you don't have lines that have hardware ports but no dial tone, since systems select outside lines from the top down.
From System programming, program 400 defines connected lines.
Carl
SOURCE: the tel 1 and 2
When the tel light blinks this indicates that the line is in use. To trouble shoot this issue you will need to connect a phone directly to the tel 1 port of your modem. If you have dial tone when directly connect that means that there is an issue with the internal wiring of the home. If you still do not have any dial tone with the phone directly connect than there is an issue with the modem and it needs to be replaced.
I hope that information above has helped is some way.
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