I have the same problem with this number but the man that does leave a message on the voice mail of my phone is calling for someone I dont know who must have had this number before me and is kinda rude with his messages sometimes and It was really annoying.
Collection agency calling on behalf of ATT Wireless, called me on my ATT Wireless phone - what an idiot!
Called my cell & left a message the 2nd time for a person I had never heard of. Requested a return call to an (888) number. This is a new number for me and I suspect this is a collection agency looking for someone who had this number previously.
Calls 2 to5 times a day, NEVER leaves a message!