I just got a call for my business partner (an attorney) from this number.  I'm not sure, but I believe this might be a headhunter.  This number calls daily and, although they leave a name (in this case Brenda Scholl), they never leave a message or their company name saying they'll "call back."  Although I've heard this same voice previously, I believe she (or they) use different aliases to stay anonymous.  Such a nuisance!