First, be sure that the phone is plugged into the phone jack if this is a home phone. The next step would be to take the phone apart and make sure all wires are connected tightly.
If a phone is in a business, all you usually have to do is dial '9' and wait for a regular dial tone.
In general, you will always have a dial tone when you are calling from a landline phone, but never from a mobile phone.
Dial Tone
ring ring xx
yes
press the talk button and get the dial tone
its about the same as the dial tone on a phone
Dial 9 on your phone and wait for about two minutes and you will hear a second dial tone, then dial 467-TONY and you will reach his personal phone. You can also reach him by email at the address fonzylover56@hotmail.com
fast and easy dail...and some have free of charge
Pick up your phone, wait for the dial tone. Then dial *67, wait for the dial tone sound to like cut out twice. Not a beep but no actual sound for appxroximately 1 second each, one immediately after the other. When the dial tone resumes, make your call. This is a per call type of thing. In other words, YOU control who sees your number. Do this for every 'annonomous' call you want to make.
phone line may be defective
because you didnt pay your bill or the line got cut somewhere