Looks like a scammer. Its always on engaged tone.

2 hrs & 24 minutes ago. missed called.  2-18-14  got similar call. Different # yesterday. No message left on either

I received a call from this number, a real person was on the line and said they could lower my CC interest rates to 6%. They said they were with BOA, Capital One, Chase and Citi. They asked for the expiration date and cc number to look up balances, etc. I gave them a fake number and they said it showed as a closed account. When I asked for their telephone number to call back after I spoke to Chase, they said "Do you have it on Caller ID?"  

This is a TOTAL SCAM. I called Chase and informed the Fraud department which confirmed there is no such promotion going on.

I received a call from them at 8 am with an automated voice saying I could lower my interest rate on my credit card.  When I pressed 1 to talk to a person and ask if it was spam or I really could lower my interest rate they hung up.  It's a junk phone call because I don't have any credit cards so don't hand over any personal information or you might get screwed.

Scammer robocall