Dell Voice - VoIP For Canadians
Fongo and Dell have tied up to offer the 'Dell Voice' service to the Canadians (as of now, hopefully). There's an Android app, an ios app and Windows desktop app available (link below) for download. The Dell Voice service will offer you a local phone number which will enable you to call most of the cities and even 911 service. The calls will cost 2c/min; and each call will eat up about 1MB of data.

The Blackberry app is in development. So RIM fanatics may wait.
Link: <a href="https://www.dellvoice.ca/" target="_blank" rel="noopener noreferrer">www.dellvoice.ca</a>