Hangups  No Message Left   Bill Collectors? Who?

Call came through on my cell (apparently an IL number), didn't recognize the number and didn't answer.  No message was left.  Set number to be ignored now with a list of others.

UPDATE:  Blocked caller-ID and called the number, and received a VM message identifying the number as an Elmhurst Hospital foundation number or something like that.  Must not have been important if they didn't leave a message for me.

Yep called me too and left no voice message.

This is the Elmhurst Hospital Foundation calling (annual fundraiser). They (or their many office & affiliates in DuPage County Illinois) likely have your number because someone used your number when getting medical services (even prescriptions from Elmhurst Hospital or affiliated doctors, etc. While this is a legitimate non-profit, I'll not even consider an over-the-phone donation. They have a web site. And, I never "opted in" for calls from the Foundation which seems to have access to hospital/clinic intake records (perhaps it was in the small print). Nonetheless, as a non-profit charity, Congress exempted them from DNC restrictions.