Why does my phone rings only once then stop? Sometimes It works just fine.?

Question

Why does my phone rings only once then stop? I tried calling my phone numbers myself many times.?

My DSL connection is OK and I have only one phone line which is used together with phone line. I also use the phone tester at my phone jacks. It shows green just fine for 3 phone jacks in the house. I do Not have any kind of service call.

Answer 1

If it's only a random single ring, it could be a telemarketer's automatic dialing system.  They dial several numbers at once and pick up the one who answers first.

Answer 2

This is a classic symptom of a certain type of line fault.   Open your demarc and pull the plug to disconnect all your internal wiring, then call your number again from another phone.   If you still get the single ring then silence/disconnect, it is outside line trouble and you will need to report it to your phone company to get it fixed.