No experience in Wifi Calling but I use the 2ndLine app for (very rare) calls and SMS. It gives you a local number. Data-only is the most cost effective imo
Make sure that you are an eligible Fido customer. You must be an existing, postpaid, mobile customer.
I found out about the deal on a Redflagdeals post where some have successfully got the plan without being a Fido customer
https://forums.redflagdeals.com/fido-4gb-tablet-plan-cpo-tab...