atcomsystems.ca/forum Forums TDM Business Telephone Systems Panasonic Telephones & Systems Phone stopped working KX-T7731

I really hope someone here can help me,, I have a KX-T824 phone system by Panasonic, with KX-T7731 phones. Yesterday my office finally got finished and I plugged in my phone and it worked great,,, for about two hours,, then it just stopped working. If I push a co button it lights up and says CO 1 (or 2 or 3) on the display,, but no dial tone, the volume is all the way up. The phone rings and the co buttons light up but when I pick up the handset there is no noise. when I pick up the handset the keypad lights up but no co line lites up, if I push a co line while the handset is up it lights up but still no dial tone,, but the sp phone button lites up, no noise though. I have read all the manuals, combed through all the pc programming,, I cant find anything. By the way,, the phone works fine when I plug it into another extension. and other phones react the same way on this extension. Any ideas ??

have you called , the tech who installed it for you ?

what does he say ?

Andy,
Does the phone work normally on speaker?
Have you swapped this with a known good working extension to see where the problem stays, with the port or with the phone?
It sounds as though this may be in headset mode.
'Yesterday my office finally got finished "
Is this a new system? where's your installer?
They need to stand behind the install and product.
MrG

Sounds like its in headset mode, if it was you would get dial tone when you press Speaker and then a line key. Other wise ther is most likely a broken wire on the Audio pair to the jack, or a bad line cord (from phone to wall).

those phones require 4 wires, unfortunately sounds like your jack is getting ony 3 of the 4.
somehow, 2 hours after you plugged in the phone and had a working phone, something happened that damagd the wire or jack. maybe there was work being done in the offices next to yours.
eventhough it might not have been the installers fault your best bet is to ask him to come back and troubleshoot it.

yes cheap jacks the pins can come out of its
intended groove and can cause the problem
or its cabling or the port.....

Unfortunately I am my own installer,,, The phone does not work normally on speaker phone, If it is in headset mode how do I take it out ? I will check the jack and change the wire,,, thanks for your resposes.

Problem Solved !!!! Thanks for your help guys,, it was the plug that goes into the wall,, the little fins that separate the wires were bent over !!!!! I cant believe it was so simple !!! thanks again !!!

Somebody put something HEAVY on that plug! Still, Andy, we appreciate your final response! So many folks get the help and never confirm the fix, let alone thank us! (Man, there's that bitter 'ol man comin' out again!) John C. (Not Garand)