No Dial Tone on All PhonesNo dial tone on your phone could be the result of disconnected service (a temporary suspension of service or an unpaid account) or an outside line problem. If the problem persists Perform the Network Interface Device (NID) test procedure. No Dial Tone at the Network Interface Device (NID) Not having a dial tone at the NID usually indicates an outside line problem. Verizon maintains your outside phone lines as part of your basic monthly service. Outside lines will be repaired at no cost to you.
You can use the Verizon Troubleshooter to diagnose the problem and request a repair if an issue is detected. Watch the online Verizon Troubleshooter tour
See also: Related Phone Troubleshooting topics