I did not pickup, but I researched their caller id "HABFC" and phone number and came up with the following.  Based on this I'm listing them as "Non-Profit" (charitable) organization but I suppose this would really need to be confirmed.

Appears to be a charitable organization. I did a Google search on "HABFC" and came across their website, which gives the phone number 780-425-5335 on their "Contact Us" page.

Website: http://www.habfc.com

The website carries the "BBB Online Reliability Program" logo. On the "Contact Us" page they give their information as:

The Hospital Activity Book for Children
925, 10104 - 103 Avenue
Edmonton Alberta T5J 0H8

Phone: (780) 425-5335
Toll free: 1-877-413-6163
Fax: (780) 413-6185
Toll free fax: 1-877-463-6185

email: info@habfc.com

Yep, that's who it is.  They are a business to business fundraiser program / publishing business and I used to work for them.

Don't worry, they are harmless, and will leave you alone if you tell them.  They only try to call businesses and not private persons.  The information on their website is legitimate.

I recieved a call from this organization. The caller was rude and belligerent, she refused to identify herself and would not take us off her list. This company is presenting itself as legitimate but behaves like they are a scam.

They are [***]. They are selling crappy ads in crappy magazines that they claim are for kids in hospitals, but the hospitals don't want their magazines.

Victim Of Habfc:

Those are damaging words, and unless you have proof of your claim, I would refrain from slandering a reputable company. I have being doing business with them since 1997, and I am more than happy with their product, the professionalism and quality of work. I have seen the books at my local hospital as they have been receiving them for many years. My grandson got one when he broke his leg, and I was grateful for them and the smile it gave him while recovering. So please Victim, get your facts straight before making accusations about a wonderful organization.