They call repeatedly, but won't leave a message.

They call me non-stop...all the time I am receiving missed calls.  No voicemails.

same.  continue to call back to back but will not leave a message or any details.  They will not get my call answered without a voicemail at the least.....

Have no idea who called me.  Received a phone call just this morning at approximately 8:58am (PST) and believe it or not, somehow the caller is able to keep my cell phone continuously ringing.  It is now 9:08am (PST) and the phone is still ringing!!  Of course, I turned off the ringer.  I am going to leave it as is just to see how long these idiots will keep it going and then I will block the number.

This is straight harrassment!

UPDATE:  It is now 9:16am (PST) and I have had enough. I'm shutting my phone down and blocking this number.  If i ever find out who these idiots are I am going to find out if they can be sued for harassment.  If they are legitimate, why not call just once and leave a message!