after read the comments, now I know it must be a call from enterprise. I'll pick up the call tomorrow & let they know that i'm satisfied with the rental service. but i prefer them to leave the msg, so i know who's calling without having to google the number.
Just got a call from this number and based on the posts, makes sense it was Enterprise as they own National, Alamo, and Enterprise rent -a-car and I just rented from them last week
They called my cell phone, didn't leave a message. I called the number from my office phone; the recorded message said they are "Merits Research" and that they contact people to ask their opinions about products and services so their clients can blah, blah, blah blah. I've marked them as SPAM on my caller ID and added them to my blocked numbers list.