I have a customer that called and they have3 lines, all 3 work fine in the back offices but in the front offices it shows line 3 bug no dial tone??? I have never seen that before. It's a mics
If you do feature *0 on the phone does it show line 3 is actually programmed on it? If you do feature *0 on the back office phones is line 3 really line 3?
"Im lost here"...lol
"No Dial tone on some extensions"
"but in the front offices it shows line 3 bug no dial tone?"
If "bug" is a subliminal message I would agree there is corruption.
Reboot KSU for starter otherwise STARTUP
Good luck HNY
Front offices possibly "Ring Only"?