Welcome to the Community!
If you plan on making calls through WiFi Calling from Canada to the U.S, you'll will be charged based on the rates in your plan or current Pay-Per-Use wireless rates. We also offer Long Distance options that you can add to your line. You can read more about WiFi Calling on our Community here.
You can also check the features that come with your plan on your online account under Mobile - Usage and Services - View full plan details.
If you're still unsure about the applicable rates and would like us to take a look at your account, you can contact us here or we can send you a PM on the Community.
Let us know!