Zaidbasil- They aren't compatible.
The US model has a different board to comply with FCC regs.
We're in Michigan. Last year, we sent a couple sets out for repair, and they sent us the Canadian version. Wouldn't come up on the customer's site. The supplier sent us the US model, and they came right up.
To cover myself, that doesn't necessarily mean the US version won't work in Canada, but I'm pretty sure they're a different freq.