Thank you for posting your question in the Android board of the Community. I'm assuming you have already setup the Wi-Fi Calling on your phone; Wi-Fi Calling icon will appear on the phone’s status bar, indicating that Wi-Fi Calling is connected and ready for use.
I finaly fix it.
My problem is that I cheat the phone to make it think it was a Bell to get the android 6.0 update. The feature for WIFI Call where there but not working.
So I had to flash my phone with the factory 5.1 update from roger, then update with the proper update from Rogers.
Also the left Rogers sign still say Rogers, but on the right, there is a logo of a phone. (circle in red), I also was able to test if it work by puting the phone in Airplane mode and activate the WIFI.
I was able to make phone call and text.