Innovative Teleservices calling on behalf of an unknown charity.  Here's a recording of what you get if you call the number back.
https://whocalld.com/+14402190076?dial

Says they'll call back again, I've blocked this number but something tells me they'll use another one when they do.  Looking at reviews from employees on glassdoor it doesn't look like they call for charities at all, only mentions telemarketing calls.  Beware of this one.

Most likely phone number 440-219-0076 is from Ohio, United States.

Source: http://www.uscallers.com/1-440-219-0076

There are collecting money for Childhood Leukemia victims or so they say, I am research more about the company.