Caller asked if I was who I was, and then started to ask me to verify my personal information. (birth date, etc) I told them that I didn't give that information out over the phone and hung up.

This number has been repeatedly calling my house for the past week and never leaves a message.  After seeing the other post, I can see this is some type of a fraud or identity theft scam.

This number REPEATEDLY calls my cell and leaves NO message.  It is VERY annoying.  Almost to the
the point of harassment.

This is United Recovery Systems - a debt collection company.  They are NOT located in Annapolis MD.  They are located at 5800 N Course Dr  Houston, TX 77072.  They have a line dedicated to each state, so you are more likely to answer the phone then if an 800 # or (713) 977-1234 come up.  

They called me 8/6/13 at 12:38 p.m. and left a voice mail.  Then, AS I listened to voice mail, they called again at 12:41 p.m.  

8/6/13 - 12:38 p.m. voice mail from Bob Hudson asked I contact him at 888-861-4702 ext 7426.
8/6/13 - 12:42 p.m. voice mail from Brandon Bowlin asked I contact him at 866-596-1280 ext 7021
8/7/13 - 8:23 a.m. voice mail from Heather Vickers asked I contact her at 866-596-1280 ext 7128

Apparenlty they do not communicate with one another as I had returned the first call from Mr. Hudson.