Continuous calling

Also, Continuous Calling... for months at a time.  When phone is answered, caller hangs up.

Calls me once a day

I just recieved a call from this number and answered hello several times...clearly heard a caller on the other line but did not say anything, no background noise. A few seconds passed and they hung up!

Calls here several times per day for months, then disappears for months, then starts calling again.  I never answer, and they never leave a message.
Sometimes caller I.D. from this numbewr shows "Tim C", other times it shows "Chattanooga Tim"