i think it may be discover card or gmac?

did not answer call, no voicemail was left.

Called mobile phone, answered, state "we have an important message", waited for someone to come on the line and they hund up!!!

I have nearly 20 missed calls from this number and they never leave a message.  I finally answered it today and a man's voice said "I'm looking for" and then my sister's name.  The guy's voice sounded monotone (possibly a recording) and it didn't sound very friendly so I hung up.  My guess is it's some sort of scam or telemarketer, cause if they're not willing to leave a message after that many calls, then that's usually a warning sign that you shouldn't call back.

I get calls from this # it seems like every hour on the hour. I get calls at my work also i can see what # is calling so i dont answer. that tells you i recgonize the freakin #. They did leave a message today saying it was kaiser and that they had a message to share with me and to call 877-860-4214. i didnt call