1. Canada-wide means no long distance or roaming charges in Canada (airtime still applies if you don't have Unlimited airtime or evenings/weekends). If you call any phone # outside Canada or leave Canada and use the phone, then you'll be charged extra.
2. You can receive incoming calls from anywhere in the world as long as you're in Canada. Airtime may still apply. Check your plan on Self Serve for details.
3. 5 essentials gives you Unlimited calling to any 5 Canadian telephone #s regardless of time or day excluding your voicemail, 1-800, and toll free #s.