You can claim long distance charges, but you cannot claim your home phone unless it is ONLY used for business. You can claim a percentage of air time expenses on your cell phone if it is for daycare purposes. I got this info directly from the CRA website - "Using your home for Daycare".

http://www.cra-arc.gc.ca/E/pub/tg/p134/README.html

I claimed Internet, Netflix and my cell phone under the Business Use of Home section.